Stryten Energy M Series User manual

M-SERIES
1
Li510 LITHIUM-ION BATTERIES
SERVICE MANUAL
WARNINGS AND GENERAL INFORMATION
Observe these Instrucons and keep
them located near the baery for future
reference. Work on the baery should
only be carried out by qualied personnel.
While working on baeries wear
protecve eye-glasses
and clothing.
Cauon – parts of the baery may carry
dangerous voltages. Be careful when
handling cables.
Keep baery dry.
DO NOT smoke.
DO NOT dispose of the baeries in a re.
DO NOT dispose of the baery in
normal waste.
DO NOT include baery with lead acid
baery recycling.
Explosion and re hazard. Avoid short
circuits. Avoid electrostac charges and
discharges/sparks.
Keep children away from baeries.
DO NOT pressure wash.
- Lithium Baeries are heavy. Make sure
they are installed securely.
- Handle with care, avoid mechanical shock.
- Do not li or pull up on power or
communicaon cables.
- Avoid wearing any loose metallic items
such as jewelry, watches, or bracelets
- Corrosive contents! Do not open. Avoid
contact with contents of a damaged
baery.
- To avoid the release of harmful gases,
avoid deeply discharging, charging
when damaged, and improperly charging
the baery.
- Use cered insulated safety tools for
installaon. Any work procedures
and tools used should be in compliance to
EN 60900 or similar standard.
Baery may require recycling in
accordance with local laws. Contact Stryten
Energy or regulatory authories for further
informaon. DO NOT include baery with
lead acid baery recycling.
Tray liing at this area.
Li510
Previously LiFT FORCE LPX 2.0

2
M-SERIES
Do not break the warranty seals of any
baery without authorizaon from Stryten
Energy Service! Breaking a warranty seal
without authorizaon from Stryten Service
will void the warranty.
Stryten Energy Move Power Service 1-866-462-2288 [e-mail]
Li510
Before working on any baery, a Stryten
Energy ServiceMAX cket must be created!
Contact Stryten Energy customer service if
you need assistance creang a ServiceMAX
cket.
TABLE OF CONTENTS
Baery System Diagram ................................................................................................................................................... 3
Major Components............................................................................................................................................................ 4
Idenfying Li510 Baery Informaon ............................................................................................................................ 4
Opus Baery Data Display ............................................................................................................................................... 5
Baery Power Switch LEDs .............................................................................................................................................. 6
Periodic Maintenance ....................................................................................................................................................... 7
Fully charging the baery ............................................................................................................................................. 7
Keeping power and aux contacts on charger connector clean ................................................................................. 7
Checking cable from baery to Forkli ...................................................................................................................... 8
General Operaonal Consideraons ........................................................................................................................... 8
Troubleshoong Issues During Baery Operaon ....................................................................................................... 8
SOC on Opus display does not match Forkli BDI display ......................................................................................... 8
Forkli goes into “turtle” mode at high or low SOC .................................................................................................. 9
Baery quickly drops to low state of charge aer charging ..................................................................................... 9
Baery beeps for 15 seconds and stops with Over Current CHG warning .............................................................. 9
Forkli will not operate – All zeros displayed on Opus display ............................................................................... 10
Forkli will not operate – All values displayed on Opus display are normal ......................................................... 10
Forkli will not operate – Low SOC Alert ................................................................................................................. 10
Troubleshoong Issues During Baery Charging ........................................................................................................ 11
Opus displays High temperature warning during charge ........................................................................................ 11
Troubleshoong M-Series X-3 and X-7 charger communicaon problems:........................................................... 11
Instrucons for downloading charger records from Stryten Energy M-Series X-3 and X-7 chargers.....................13
Service/repair of REMA320 and REMA640 Charger connectors ............................................................................... 15

3
M-SERIES
Li510 BATTERY SYSTEM DIAGRAM
Li510
M-Series
X-3 and X-7 1ph 24v 1ph 36v ELi

M-SERIES
4
MAJOR COMPONENTS
Components used by Operators, most commonly
serviced:
Charger Connector – Delivers power from charger.
DIN320 or DIN640, per current requirements. Uses aux
pins for communicaons with charger
Forkli cable and connector – Delivers power to
forkli, connector type per customer specicaon
Power Buon and Buzzer – Acvates baery, alert
operator of warnings as needed
Opus Display – Provides baery informaon to
Operator such as State of Charge (SOC) and other
status informaon
Components interior to the baery, not typically
serviced:
Power Modules – Congured in series and/or parallel
to achieve baery voltage and capacity per customer
requirements
BMS – Controls System operaon, Monitors Power
Modules
Power Contactors – Controlled by BMS. Used to
Isolate truck while charging and as needed for system
safety events
Charger and Forkli Fuses – Protect against system
overcurrent
Baery Tray – Protects components and provides
ballast for forkli
Power Bus – Power distribuon to and from individual
Power Modules
CANbus and Safety Line – Between BMS and all
modules.
IDENTIFYING Li510 BATTERY
INFORMATION
Every Li510 baery has a label plate on the lid of
the baery which idenes the following baery
informaon:
• Nominal Voltage
• Max Charge Voltage
• Capacity in Ahrs
• Energy in kWh
• Weight, in kg and lbs
• Model number
• Serial Number
Before servicing a Li510 baery, make sure to note
the model and serial number of the baery, in the
event that this informaon needs to be provided to
Stryten Energy Service. (See below)
Li510

M-SERIES
5
Li510
OPUS BATTERY DATA DISPLAY
The Opus Display shows State of Charge (SOC), baery
temperature, voltage and current. The display is used
primarily by the Operator to monitor SOC in between
charging breaks. (See below)
If the BMS detects a warning or alarm condion, it will
show the warning or alarm on the display. (See below)
For warnings, the buzzer will beep once per second.
Otherwise, the baery operates as normal. For alarm
condions, the buzzer beeps 3 mes per second for
15 seconds, to alert the operator that the baery will
shut o and forkli operaon will be disabled in 15
seconds.
Once the alarm condion is removed, the baery
can be restarted with the power/reset buon. When
troubleshoong a Li510 baery, be sure to note the
values displayed on the Opus screen before, during
and aer baery problems occur.
The following Warnings, Alarms and Alerts
may be displayed on the Opus during normal
operaon:
Low SOC Warning – typically the most common
warning, indicang that the baery needs to be
charged soon
Low SOC Alert – If the Baery reaches 0% SOC, the
baery will shut itself o in order to protect itself.
The buzzer beeps 3 mes per second for 15 seconds,
to alert the operator that the baery will shut o and
forkli operaon will be disabled in 15 seconds. If a
baery shuts o with a low SOC Alert, it can be reset
one me, aer which the forkli must immediately
return to the charging area so that the baery can be
charged
Low Voltage Alarm – If following a Low SOC Alert, the
baery is not immediately charged and connues to
be used, the baery will further protect itself with
a Low Voltage Alarm. Aer the Low Voltage Alarm
occurs, the baery cannot be reset and the forkli
must be towed back to the charging area
Low Voltage Warning – If the baery is at low SOC
and the forkli is performing work that puts a heavy
power load on the baery, a Low Voltage Warning
may occur. This is another indicaon that the baery
needs to be charged.
High or Low Temperature Warning – If the baery
gets within 5C of its high or low temperature limits, a
warning will be displayed on the Opus
High or Low Temperature Alarm – If the baery
exceeds its high or low temperature limits, an alarm
will be displayed on the Opus. The buzzer will beep
rapidly for 15 seconds, aer which the baery will
shut down for protecon.
The following Warnings, Alarms and Alerts
may be displayed on the Opus during error
condions:
Please Check CAN Communicaon – If this alarm
occurs during charging, it is typically indicave of
a communicaon error between the charger and
baery. This alarm is usually resolved by servicing
of the AUX pins on the charger connector on the
baery and / or the Aux pins on the charger’s
output connector. If this error occurs during forkli
operaon, with no charger present, it may
indicate a CAN communicaon error inside

M-SERIES
6
Li510
On / O buon LED Green LED Red
System in Standby mode O O
System acve, no alarm or warning detected Once per second O
Warning O Once per second
Alarms O Three per second
Buon pressed for less than 5s to Reset
Warnings / Alarms On as long as buon is pressed O
Buon pressed for more than 5s to move
from acve to Standby mode O On as long as buon is pressed
Buon is pressed in standby mode and the system
is moved into acve mode On as long as buon is pressed O
the baery, in which case contact Stryten Energy
Service to arrange for factory repair.
Over Current CHG Alert – This Alert is typically
indicave of a loose current shunt in one of the
power modules. It typically occurs when the forkli is
operang, and results in the baery powering down
aer issuing an alarm beep for 15 seconds. In some
cases the problem may stop aer the baery is reset,
however this issue, once presented, usually reoccurs
with increasing frequency. If this message occurs,
contact Styrten Energy Service to arrange for factory
repair.
Plug Removed DIS Alert – This Alert is typically
indicave of a loose current shunt in one of the power
modules. It typically occurs when the baery is put
on charge, and results in the baery powering down
aer issuing an alarm beep for 15 seconds. In some
cases the problem may stop aer the baery is reset,
however this issue, once presented, usually reoccurs
with increasing frequency. If this message occurs,
contact Stryten Energy Service to arrange for factory
repair.
Safety line Alert – This Alert indicates that either one
of the Power Modules has detected a problem or that
one of the internal CAN communicaon lines is loose.
If this message occurs, contact Stryten Energy Service
to arrange for factory repair.
Plausibility Error – The BMS has detected inconsistent
readings between Power Modules in the baery. This
may indicate that a module has a blown fuse, a low
voltage cell block, or some other unusual condion. If
this message occurs, contact Stryten Energy Service to
arrange for factory repair.
BATTERY POWER SWITCH LEDs
The Li510 Baery power/reset switch has two LEDs
that are also used to indicate status of the baery.
The power / reset switch is located on the gland pod,
on top of the baery, on the same side of the gland
pod as the buzzer.
To power the baery on, press and hold the Power/
Reset buon unl it turns green (aprox 1s). To power
the baery o, press and hold the Power/Reset buon
unl it turns red (aprox 5s). When troubleshoong a
baery, make sure to note the status of the switch
LEDs (See below)

M-SERIES
7
Li510
PERIODIC MAINTENANCE
Fully charging the baery
In order to keep all the cells in the baery balanced, it
should be fully charged to 100% State of Charge (SOC) at
least once per week and ideally once per day, as shown
on the M-Series X-3 and X-7 charger screen below.
12
LiFTFORCE 2.0 Service manual
Confidential material of Stryten Energy
Periodic Maintenance
Fully charging the battery
In order to keep all the cells in the battery balanced, it should be fully charge to 100% State of Charge
(SOC) at least once per week and ideally once per day, as shown on the Fury charger screen below
In order to make sure that the battery is fully charged, plug the battery into the charger and do not
disconnect the battery until the “Complete” status is shown on the charger. Make sure that the weekly
charging schedule allows adequate time for the battery to get a full charge once per week and ideally
once per day
In order to make sure that the baery is fully
charged, plug the baery into the charger and do not
disconnect the baery unl the “Complete” status
is shown on the charger. Make sure that the weekly
charging schedule allows adequate me for the
baery to get a full charge once per week and ideally
once per day.
Keeping power and aux contacts on charger
connector clean
Make sure that the blue coding key is installed
properly and that the interior mang surfaces of the
2 power pins and 4 aux pins on the charger connector
are clean. Clean the interior of the pins with either
95% ethanol or 91% isopropyl alcohol and swabs.
This should be done at least every six months in a
clean facility and more oen for facilies with large
amounts of airborne material.
13
LiFTFORCE 2.0 Service manual
Confidential material of Stryten Energy
Keeping power and aux contacts on charger connector clean
Make sure that the blue coding key is installed properly and that the interior mating surfaces of the 2
power pins and 4 aux pins on the charger contactor are clean. Clean the interior of the pins with either
95% ethanol or 91% isopropyl alcohol and swabs. This should be done at least every six months in a
clean facility and more often for facilities with large amount of airborne material
REMA640 Charger connector contacts
REMA320 Charger connector contacts
REMA640 Charger connector contacts
REMA320 Charger connector contacts
13
LiFTFORCE 2.0 Service manual
Confidential material of Stryten Energy
Keeping power and aux contacts on charger connector clean
Make sure that the blue coding key is installed properly and that the interior mating surfaces of the 2
power pins and 4 aux pins on the charger contactor are clean. Clean the interior of the pins with either
95% ethanol or 91% isopropyl alcohol and swabs. This should be done at least every six months in a
clean facility and more often for facilities with large amount of airborne material
REMA640 Charger connector contacts
REMA320 Charger connector contacts
When the blue coding key is inserted properly, the
baery voltage will be visible through the hole in the
top of the connector. See the secon on servicing the
charger connector if the coding key is not installed
properly.
14
LiFTFORCE 2.0 Service manual
Confidential material of Stryten Energy
When the blue coding key is inserted properly, the battery voltage will be visible through the hole in the
top of the connector. See the section on servicing the charger connector if the coding key is not installed
properly.

M-SERIES
8
Li510
Checking cable from baery to Forkli
Check the connector to the forkli to make sure that
it is inserted ghtly. Also check the exit point of the
baery compartment to make sure that the power
cables to the forkli are not rubbing on any metal
surface where they could be abraded.
15
LiFTFORCE 2.0 Service manual
Confidential material of Stryten Energy
Checking cable from battery to Forklift
Check the connector to the forklift to make sure that it is inserted tightly. Also check the exit point of the
battery compartment to make sure that the power cables to the forklift are not rubbing on any metal
surface where they could be abraded
15
LiFTFORCE 2.0 Service manual
Confidential material of Stryten Energy
Checking cable from battery to Forklift
Check the connector to the forklift to make sure that it is inserted tightly. Also check the exit point of the
battery compartment to make sure that the power cables to the forklift are not rubbing on any metal
surface where they could be abraded
General operaonal consideraons
Make sure that the baery is kept clean and dry
• Never clean the system or system parts using a
vapor jet or spray water.
• Dirt and water may enter the system and cause
major damage.
• Use only a moist and clean coon cloth for cleaning.
• Avoid chlorine-based disinfectant wipe-downs.
Do not let the baery sit for long periods of me at
low state of charge.
Before being placed in storage the baery should be
charged to 50 % SOC, powered o, and disconnected
from both the vehicle and the charger.
The Li510 Lithium Material Handling Baery system
has a very low self-discharge and can be put into
storage for up to 12 months. It must then be
recharged
If baeries are taken out of service, they should be
stored in a dry and frost free room.
TROUBLESHOOTING ISSUES DURING
BATTERY OPERATION
SOC on Opus display does not match Forkli
BDI display
The Li510 baeries use NMC chemistry. If the Forkli
Baery Discharge Indicator (BDI) is congured for
lead acid or some other type of lithium chemistry,
the SOC displayed by the Opus may not match the
SOC displayed by the forkli BDI. For example, in the
images below, the Opus display on the top is showing
100% SOC and the forkli BDI on the boom is
showing 90% SOC.

M-SERIES
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Li510
The discrepancy on the previous page in displayed SOC
values is normal when the truck BDI is congured for
lead acid or some other lithium chemistry. Check with
the forkli dealer and/or forkli technical support
to congure the truck BDI for NMC lithium. If this is
not possible, use the SOC displayed by the Opus to
gauge the baery SOC and ignore the SOC displayed
on the forkli BDI. The following table should be used
when seng up a Forkli BDI to be used with Li510
baeries.
Nominal
Voltage
0% SOC 100%
SOC
Undervoltage
alarm
Overvoltage
alarm
24V 22.4 V 28.8 V 20.3 V 29.8 V
36V 32.0 V 41.2 V 29.0 V 42.5 V
48V 44.8 V 57.7 V 40.6 V 59.5 V
72V 64.0 V 82.4 V 58.0 V 85.0 V
80V 67.2 V 86.5 V 60.9 V 89.3 V
96V 89.6 V 115.4 V 81.2 V 119.0 V
Forkli goes into “turtle” mode at high or low SOC
If the Forkli BDI is congured for lead acid or some
other type of lithium chemistry, the Forkli BDI may
limit the operaon at either the high voltage or low
limit of the baery. In this case, it will be necessary
to work the forkli dealer and/or forkli technical
support to congure the truck BDI for NMC lithium.
Use the table on the previous page to verify that the
working voltage range of the baery is supported by
the Forkli’s drive electronics and set the Forkli’s
BDI accordingly.
Baery quickly drops to low state of charge aer
charging
If the baery quickly drops to a low state of charge
aer charging, this may be a sign of a loose current
sensor inside the baery. Indicaons that the Low SOC
Warning is likely due to a loose current shunt are:
1. Typically the voltage reading will be higher than
normal for a low SOC baery. For a 36v baery, the
voltage that corresponds to 6% SOC is approximately
34V. If the baery voltage shown at low SOC is
signicantly higher than this, it could indicate a loose
current sensor.
2. If a current shunt is loose, typically there will be
a current of ~-65A displayed, even if the forkli is
staonary and not moving.
While the forkli can be operated safely at a false low
SOC, the warning beeping from the baery may be
objeconable to operators. If this error occurs, please
take a picture of the Opus display and baery serial
number, and contact Stryten Energy Customer service,
as this is not a eld repairable issue.
Baery beeps for 15 seconds and stops with Over
Current CHG warning
This error indicates a faulty current sensor internal to
the baery. Typically a current of ~70A is displayed,
even though the baery is not on charge. If this error
occurs, please take a picture of the Opus display and
baery serial number, and contact Stryten Energy
Customer service, as this is not a eld repairable issue.

M-SERIES
10
Li510
Forkli will not operate – All zeros displayed on
Opus display
This indicates that there is an internal CAN
communicaon problem within the baery. If this
error occurs, please take a picture of the Opus display
and baery serial number, and contact Stryten Energy
Customer service, as this is generally not a eld
repairable issue.
Forkli will not operate – All values displayed on
Opus display are normal
If the forkli does not operate and the Opus display
does not indicate any problems, the rst thing to
check is to conrm that the forkli cable from the
baery is mated properly to the connector on the
forkli.
If there are no obvious problems with the connecon
from the baery to the forkli, disconnect the
baery from the forkli and measure the voltage
on the baery terminals. If the baery is in normal
operang mode (LED on the power switch is slowly
ashing green) and the baery is not being charged,
the baery voltage should be present at the output
terminals of the baery. If baery voltage is present,
the problem is likely with the forkli. Contact the
forkli dealer and/or forkli technical service for
further support.
If there is no voltage on the baery’s output cable
when the baery is powered on, not charging and
disconnected from the forkli, it will be necessary
to open the baery for further troubleshoong.
Contact Stryten Energy Customer service to open
a ServiceMAX cket before proceeding. Make sure
to provide pictures of the Opus display and baery
serial number, voltage readings and any pernent
informaon about how and when the forkli stopped
working.
The forkli output cables are fused, so the next step
aer receiving authorizaon from Stryten Energy
is to check the connuity of the fuse on the forkli
cable. If the fuse is not open, the next thing to check
is the contactor for the forkli cable. All baeries
have a contactor on the posive cable and some
modules have a contactor on the negave cable as
well. Contact Stryten Energy customer service for
assistance troubleshoong the contactors if the
problem appears to be with the contactors.
Forkli will not operate – Low SOC Alert
If the SOC of the baery drops below 10%, the baery
will beep once per second and a low voltage
warning will be shown on the Opus display

M-SERIES
11
Li510
If the SOC drops to 0%, the baery will beep rapidly
for 15 seconds and turn o. The reset buon can be
pressed once to get the vehicle to the charger. Aer
that, the baery remains turned o in order to avoid
further damage. The vehicle now has to be towed to
the charge with auxiliary means.
TROUBLESHOOTING ISSUES DURING
BATTERY CHARGING
Opus displays High temperature warning
during charge
If a baery is being charged at close to its temperature
limits, the baery will display a warning. The warning
occurs when charging temperature reaches 45C or
drops to 5C.
The M-Series X-3 and X-7 chargers will never charge
a Li510 baery above or below its allowable charge
temperature limits. When the baery reaches 45C, the
M-Series X-3 and X-7 chargers will reduce its output
current to slow the rate of heang. If the baery ever
reaches 50C, the M-Series X-3 and X-7 chargers will
stop charging and wait for the baery to cool before
resuming charging.
In addion to displaying a warning, baeries with
BMS rmware versions prior to 2.8.7 will emit a
slow warning beep (once per second) if the charging
temperature exceeds 45C or drops below 5C. This
beeping is intended as a warning only, as the baery
is sll operang within its safe limits and can sll
safely charge. However this beeping has caused some
confusion with customers, as beeping during charging
is disconcerng to operators. This has caused some
operators to stop the charger at 45C when the baery
starts to beep, even though the baery is sll well
within its allowable charge temperature.
Beginning with BMS rmware version 2.8.7, Li510 will
no longer beep when they reach 45C while charging
on a M-Series X-3 and X-7 charger. Because the
M-Series X-3 and X-7 chargers will never allow the
baery to reach 50C or drop to 0C, there is no need
to warn the user as these limits are approached.
Customers with BMS rmware prior to 2.8.7 may
contact Stryten Energy service to schedule a rmware
update if desired. Customers with older rmware
should be aware that if the baery is charging at
temperatures between 45C and 49C, a slow beep
of once per second is normal, and not a cause for
concern.
Troubleshoong M-Series X-3 and X-7 chargers
communicaon problems:
If any errors are encountered while charging a Li510
baery, the M-Series X-3 and X-7 chargers will stop
and display an error message.
If an error occurs while charging, hit the down buon
(V) to the right of the display and check the Error
Details for addional informaon. Take a picture of
the main charger screen and Error Details screen in
case assistance is needed from Stryten Energy service.

M-SERIES
12
Li510
If there is a connecon problem with the baery, one
of several errors may be displayed.
1) “No CANbus communicaon” Error
2) “Lost communicaon with baery” Error
3) “BMS reported not ready to charge” Error
Whenever an error occurs during charging, the
rst troubleshoong step is to determine if the
problem is with the baery or charger.
a. Check the baery with other chargers i. If the
baery fails on other chargers, it is a baery problem
ii. If the baery works on other chargers, it is problem
with the original charger.
b. check the charger with other baeries i. If the
charger works with other baeries, it is a baery
problem ii. If the charger does not work with any
baeries, it is problem with charger.
If problem is with the baery connecon
Check to make sure that the pins on the baery and
charger are clean so that they will make good contact.
Check to make sure that none of the pins are loose.
Next, check the Aux pins with a mulmeter
The AUX pin connecons for a REMA320 charger
connector are shown below:

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The AUX pin connecons for a REMA640 charger
connector are shown below:
For both REMA320 and REMA640 charger connectors,
the boom two pins on the connector are the CAN
bus communicaons lines.
When the Opus display is aached the resistance
between these two pins should read ~60 ohms. When
the Opus is disconnected, they should read ~120
ohms.
For REMA320 connectors, the two top pins are the
safety line pins.
For REMA640 connectors, the two middle pins are the
safety line pins.
There should be 5v between the + on the le and the -
on the right.
If the readings are not as shown above, the aux pins
will need to be repaired.
INSTRUCTIONS FOR D0WNLOADING
CHARGER RECORDS FROM STRYTEN
ENERGY FURY CHARGERS
1) Obtain a Stryten Energy USB sck from your Stryten
Energy Service Authorized Representave.
2) Insert the USB sck into the USB port of the
charger.
3) While the charger is wring logs to the USB sck,
a message will be displayed on the M-Series X-3 and
X-7 chargers. Do not remove the USB sck while
the charger is wring log les. This will take about a
minute.

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4) When the charger has nished wring its log les, it
will display a message to say that it has completed the
transfer and that the USB sck can now be removed.
5) If you have mulple chargers, you can download
charger records from all of the chargers using the
same USB sck
6) Once you have downloaded all of the logs from
your chargers, you can send the USB sck back to your
Stryten Energy Service Authorized Representave for
analysis. Or to save me, you can email the les.
In the USB sck directory, go to the aw-chargers ->
in-box directory. Under that directory will be a folder
for each charger, named with the serial number of the
charger. In each charger folder, there will be a zip le
with the logs from that charger. Email each of these
zip les to your Stryten Energy Service Authorized
Representave.
The USB sck can be re-used to download charger
records mulple mes. Each me that records are
downloaded from a charger, a new zip ll will be
added to the folder for that charger. The number
aer the dash in the zip le name is the date and
me that the log was created. In the example above,
the logs for charger serial number 1826000029
were downloaded twice. The second zip le was
downloaded on April 8, 2021 at 12:42:16, so it is
the most recent of the two les. When sending
les to your Stryten Energy Service Authorized
Representave for analysis, you only need to send to
send the most recent les.
7) Please contact your Stryten Energy Service
Representave or email [e-mail] for
addional help.

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SERVICE/REPAIR OF REMA320 AND
REMA640 CHARGER CONNECT0RS
Note – the procedure below shows a REMA320
connector. Servicing and repair of a REMA640
charger connector is idencal to the REMA320,
except that there is an unused third pair of aux
contacts, which is the top pair of contacts.
1) Check posion of baery voltage key. Take picture
of connector from front in order to verify that the
connector is replaced in the correct posion aer the
connector is serviced. (note – the picture below is
from a 36v baery. Other voltages will have the key in
a dierent posion).
2) Remove the power cable clamp and strain relief
cable es. (See below and top right)
3) Remove the voltage key. This is done from the back
of the connector. Using a needle nose pliers, gently
squeeze together the clips on the end of the key that
hold the key into place. Push slightly and the key will
come out from the front of the connector.

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4) Gently open the lid of the connector, using a small
screwdriver inserted into the hole le by the voltage
key to li up the lid.
5) Back the pins out of the connector housing and
service/repair/replace as needed.
If the exisng pins or harness are too damaged for
eld repair, replacement harnesses can be ordered
from Stryten Energy. The length of the harness will
vary depending on the baery model. Contact your
Stryten Energy service representave to determine
the correct part number to order for your baery
model. Make sure to give them the baery serial
number and model number.
6) Replace Power and Aux pins
The posive power pin (power cable with red jacket)
goes to the locaon marked + on the housing.
The negave power pin (power cable with black
jacket) goes to the locaon marked – on the housing.
The safety loop 5v pin (on red aux wire) goes to the
top aux pin posion of the REMA320 (middle posion
for REMA640), on the side closest to the negave
(black) power lead.
The safety loop Gnd pin (on black aux wire) goes to
the top aux pin posion of the REMA320 (middle
posion for REMA640), on the side closest to the
posive (red) power lead.
Both the CAN pins (on blue and white aux wires)
go into the boom set of aux pins, using a “pilot
adaptor”, which must be installed with the notch in
the adaptor facing up.
CAN high pin (on white aux wire) goes on the side
closest to the posive (red) power lead.
CAN low pin (on blue aux wire) goes on the side
closest to the negave (black) power lead.
Baery REMA Pinout

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7) Replace lid to the connector, making sure that the
aux pins are all fully inserted, so that the notches in
the pins all line up.
8) Before replacing the voltage key, make sure that all
pins are fully inserted in the housing. If any pins are
not all the way forward, repeat step 8.
9) Replace clamp to hold the power cables to the
connector, making sure not to pinch the aux comm
cable.
10) Use double zip es for strain relief, so that the
aux cable cannot get snagged and pulled from the
connector. Make sure that there is enough play in the
aux cable for the cable and connector to move from
side to side without pung strain on the aux cable.
Tighten the zip es so that the cut ends are towards
the interior of the cables
©2023 Stryten Energy Alpharea, GA 30005 SE1021 1/23
STRYTEN ENERGY
USA/PR 877.462.4636 CAN 800.268.2698 MEX [phone]