portable power tech C-15L-12 User manual

MERCL01(N)
User Manual
Design Features:
ISO: TS16949
C-15L-12 / C-7L-24
C-30-12 / C-15-24
C-60-12 / C-30-24
C-90-12 / C-45-24
1. PFC function.
– except C-15L-12 / C-7L-24.
2. Sleeping mode function.
3.
Wide input voltage (universal)
range operation.
– except C-15L-12 / C-7L-24.
4. LCD remote control.
5.
Battery temperature sensor
function.
6. Tri-LED color indicator for
different charge stage.
7.
With power supply function.
8. Prevent the battery
overcharging, and extend
the battery life.
9. For recovery of the aging
(sulfated) battery.
10. Suitable for lead acid and
Lithium batteries.

List of contents
Important Safety Instructions 3
Installation Location 4
Overview 5
A. Product Introduction 5
B. Accessory 9
C . Isolated Design 10
Charging mode Selection & Volt Graph 13
C-30-12 / C-15-24 specification 16
C-60-12 / C-30-24 specification 17
C-90-12 / C-45-24 specification 18
Charging Formula 19
Charger troubleshooting guide 20
Charger LCD Remote Control 14
C-15L-12 / C-7L-24 specification 15
Installation Illustration 10

1. Important Safety Instructions
General Safety Precaution:
Before installing and using the charger, read all instructions
and cautionary markings on the charger, the batteries, and
all appropriate sections of this guide.
C. Before using the charger, read all instructions and cautionary markings
on the charger, the batteries, and all appropriate sections of this guide.
D.
Use only attachments recommended or sold by the manufacturer. Doing
otherwise may result in a risk of fire, electric shock, or injury to persons.
B. The charger is designed to be permanently connected to your AC and
DC electrical systems.
E. Do not disassemble the charger. Attempting to service the unit yourself
may result in a risk of electrical shock or fire. Internal capacitors remain
charged after all power is disconnected.
F.
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience
and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
G. Children should be supervised to ensure that they do not play with the
appliance.
K. To avoid a risk of fire and electric shock, make sure that existing wiring
is in good condition and that wire is not undersized. Do not operate the
charger with damaged or substandard wiring.
J.
Do not operate the charger if it has received a sharp blow, been dropped,
or otherwise damaged in any way.
I.
To reduce the risk of electrical shock, disconnect both AC and DC power
from the charger before attempting any maintenance or cleaning or
working on any circuits connected to the charger. Turning off controls
will not reduce this risk.
A.
Do not expose the charger to rain, snow, spray, or bilge water. To reduce
risk of fire hazard, do not cover or obstruct the ventilation openings. Do
not install the charger in a zero-clearance compartment. Overheating
may result.
H.
The charger must be provided with an equipment-grounding conductor
connected to the AC input ground.
- 3 -

2. Installation Location: Physical requirements for installation
Condition Description
The unit is intended for use in a dry location. Do not
allow water or other fluids to drip or splash on the charger.
Do not mount the charger in an area subject to rain,
spray or splashing bilge water.
Do not expose the charger to metal filings or any other
form of conductive contamination. The presence of
conductive contamination can cause damage and
void your warranty.
For best performance, the ambient air temperature
should be between 5°F (-15°C) and 113°F (45°C)- the
cooler the better. At higher ambient temperatures, the
output current will be automatically reduced to protect
the charger from high internal temperatures.
Dry
Clean
Cool
Ventilated
Allow at least 4 inches (10 cm) of clearance around all
sides of the charger for air flow. Ensure that the ventilation
openings on the unit are not obstructed. If mounting in
a compartment, ventilate the compartment with louvres
or cut-outs to prevent overheating.
Close to AC
junction box Avoid the use of extended wire lengths if possible.
Close to
batteries
Avoid excessive cable lengths and use the recommended
wire lengths and sizes. Undersized or overly long cables
may affect charging accuracy.
Safe
Working in the vicinity of lead-acid batteries is dangerous.
Batteries generate explosive gases during normal operation.
It is safest not to install electrical equipment in these areas.
IMPORTANT
This product is best mounted in a Horizontal position.
If the unit is mounted in a vertical position,
The cooling fan must be at the bottom of the unit.
Maintenance
You should clean the exterior of the unit periodically
with a dry cloth to prevent accumulation of dust and
dirt. At the same time, tighten the screws on the DC
input terminals.
- 4 -

3. Overview
C-15L-12 ; C-7L-24
A. Product Introduction
Warning: Damage caused by wrong positive (+) and negative (-)
connection is not covered by the warranty.
1
3 4 5
6
7
8
9
10
Rear viewFront view
C-30-12 ; C-15-24
1
34 5
6
7
Rear viewFront view
9
10
8
Warning: DO NOT charge the frozen battery, may result in the serious
injury or death.
- 5 -

C-60-12 ; C-30-24
1
34
56
7
2
9
10
8
Rear viewFront view
C-90-12 ; C-45-24
Rear viewFront view
1
3
45 6
7
2
9
10
8
- 6 -

- 7 -
Note 1:
The slave switch of the remote control just cuts out the output. If you want to turn
off the charger completely, please switch off main switch of charger body.
Note 2:
DC Output
- +
Mode
NormalSleeping
Mode Selection
Remote
Control
Battery Temp.
Sensor
Charger
State
black (negative)
red (positive)
Battery
Battery Temp. Sensor: To detect the battery temp. While charging, please connect
the wire sensor to the battery Negative (-) terminal.
1DC OUTPUT : +Red / -Black
2Second DC output
3 Remote control-LCD
5Charging Mode Selection
(Please refer to page 13 )
Sleeping Mode Normal Mode
( Note 3 / Note 4 )
6Charging Status
7Sleeping / Normal Mode
( Note 2)
Battery Temp. Sensor
Warning !
1.
Connectto the battery Negative (-)
terminalonly.
2.Positive (+) terminal may damage
Sensor& Charger.
4 Battery Temp. Sensor
Slave Switch
Remote control-LCD
Fault
ON / OFF
Mode
( Note 1 )
8 Main Switch
9Fan
10 AC Input

Note 3:
Sleeping Mode: The fan would stop, and the charger working sound would be
smaller, so the output current would be 5A (12V spec.) and 2.5A (24V spec.) only.
Note 4:
Normal Mode: The charger would work as its max. capacity according to
its spec., the fan would run if it's necessary.
- 8 -
DON'T connect the sensor to the battery Positive (+) terminal.
It may damage the sensor & charger.
Charging a Lithium battery in ambient temperatures
below 0°C / 32°F must be avoided. The reason for this is it may
potentially damage the battery and / or reduce its lifespan.
This range of chargers have no low temperature protection so
please be cautious when using lithium batteries in cold
environments.
Some lithium batteries will have inbuilt low temperature charge
protection.
Warning: Damage caused by wrong sensor cable connection is
not covered by the warranty.
When the battery (-) pole temp. reaches 65°C (+/-5°C) / 149°F (+/-41°F), the charger
would stop output.

- 9 -
bracket - 2 parts : rear and frame.
B. Accessory
FRONT VIEW FrameRear
How to instal?

① With the frame only, if there’s the hole on the wall for phone jack.


② With the frame and rear both, if the user just can screw the
bracket on the wall, no hole for phone jack.
or

DC Output
- +
Mode
NormalSleeping
Mode Selection
Remote
Control
Battery Temp.
Sensor
Charger
State
Battery
black (negative)
red (positive)
Remote
Control
DC Output
Battery Temp.
Sensor
Charger
State
Mode Selection
- +
Mode
NormalSleeping
3
black (negative)
red (positive)
Battery
Before charging, read the instructions; for indoor use only. Disconnect the
supply before making or breaking the connections to the battery.
C-15L-12 ; C-7L-24
C-30-12 ; C-15-24
- 10 -
C . Isolated Design
The DC battery charging circuits of this charger are galvanically isolated
by a transformer from the AC power circuits. This feature reduces the risk
of electric shock .
4. Installation Illustration

DC Output
- +
Second DC output
+
Remote
Control
Battery Temp.
Sensor
Charger
State
Mode Selection
Battery
Battery
DC Negative Bus
black (negative)
black
(negative)
red
(positive)
red (positive)
Main battery
2nd battery
( Note 6 )
DC Output
- +
Second DC output
+
Mode
NormalSleeping
Mode Selection
Remote
Control
Battery Temp.
Sensor
Charger
State
Battery
Battery
DC Negative Bus
black (negative)
black
(negative)
red (positive)
red (positive)
Main battery
2nd battery
( Note 6 )
C-60-12 ; C-30-24
C-90-12 ; C-45-24
Note 5:
Please connect the main battery cable prior to 2nd battery terminal if you
just have 1 battery.
MODE
Normal Sleeping
- 11 -

(1). The chargers have been approved as Ignition Protected. They may be
installed in areas containing gasoline tanks and fittings which require
Ignition Protected equipment. It is safest not to install electrical
equipment in these areas.
WARNING
Explosive gases; Prevent flames and sparks; Provide adequate ventilation
during charging. Include a warning against recharging non-rechargeable
batteries. If the supply cord is damaged, it must be replaced by a special
cord or assembly
available from the manufacturer or its service agent.
Explosive gas precautions
(2). To reduce the risk of battery explosion, follow these instructions and
those published by the battery manufacturer and the manufacturer of
the equipment in which the battery is installed.
(3). Working in the vicinity of lead-acid batteries is dangerous. Batteries
generate explosive gases during normal operation. Therefore you must
read this guide and follow the instructions exactly before installing or
using your charger.
- 12 -

- 13 -
5. Charging mode Selection & Volt Graph (0:OFF )
1 2 3
O N
1 2 3
O N
1 2 3
O N
1 2 3
O N
Mode 3
(003)
Mode 4
(020)
Mode 5
(023)
Mode 6
(123)
Suitable for re-charging lithium battery.
1 2 3
O N
Mode 7
(000)
DC power supply.
[13.5V (for 12V spec.) / 27V (for
24V spec.) ]
Suitable for re-charging lead storage
battery, which is in good condition battery
(no any sulfated situation),and completely
disconnected from the devices it runs.
because this mode has the additional
stage, the battery may reach voltage
too high for them, and the limited current
delivered by the battery charger. This is
not able to provide power for the devices,
and stimultaneously charge the battery.
Suitable for recovery of sulfated gel battery,
i.e.discharged batteries unused for long
periods or the battery that never re-charges
completely. This mode should be applied
with the battery completely disconnected
from the devices it runs.
Suitable for recovery sulfated lead storage
battery, i.e. discharged batteries unused
for long periods or the battery that never
re-charges completely.This mode should
be applied with the battery completely
disconnected from the devices it runs.
standby
orange orange
LED color
red green
standby
LED color
redred green
standby
LED color
green green
1 2 3
ON
1 2 3
ON
Mode 1
(100)
Mode 2
(120)
Suitable for re-charging lead storage
battery including AGM.
Suitable for re-charging gel battery.
standby
orange orange
LED color
red green
standby
orange orange
LED color
red green

6. Charger LCD Remote Control :
Graph
ON/OFF
SWITCH
Fault LED
(red lighting)
Fault
ON / OFF
charging current
Battery
Capacity
charging mode
- 14 -
Fault
ON / OFF
Mode
Fault
ON / OFF
Mode
1. OFF
2. Mode 1: no battery connected. / the
battery is broken.
3. Mode 1: while charging.
5. Mode 7: power supply mode. 6. Over temperature protection.
Fault
ON / OFF
Mode
battery volt
** If overload, the output volt would go down
gradually, according to the load current. **
Display Content :
4. Mode 1: battery full.
Fault
ON / OFF
Mode
7. High battery volt protection.
Fault
ON / OFF
Mode
Fault
ON / OFF
Mode
Fault
ON / OFF
Mode
power supply
DC output volt
Do not dispose this product as unsorted
municipal waste. Collection of such waste
separately for special treatment is necessary.
This product must not be disposed together
with the domestic waste.
This product has to be disposed at an authorized place
for recycling of electrical and electronic appliances.
By collecting and recycling waste, you help save natural
resources, and make sure the product is disposed in
an environmental friendly and healthy way.

C-15L-12 / C-7L-24 specification
- 15 -
Model C-15L-12 C-7L-24
Voltage range
Frequency range
Efficiency
Power factor
Input socket
Mode Selection
Bulk Stage
Absorption stage (I)
Absorption stage (II)
Float stage
Max. current output
Continuous current output
Recommended battery capacity
Leakage current from battery
Over temperature
Overload
Output short circuit
Microprocessor check
Working temp.
Working humidity
Storage temp., humidity
Temp. coefficient
Remote Control
Dimension (L x W x H)
Weight
Sleeping Mode Function
INPUT
OUTPUT
PROTECTION
ENVIRONMENT
OTHER
120Vac (100~130Vac) / 230Vac (180~240Vac).
50/60Hz
>=85%
0.5 at full load (±5％)
IEC plug
55°C±5°C (131°F±41°F)
YES
YES
YES
-15°C ~ +45°C (5°F ~ 113°F)
20 ~ 90% RH non-condensing
-30°C ~ +70°C (-22°F ~ +158°F) , 10 ~ 95% RH
±0.05%°C (0°C ~ 50°C/32°F ~122°F)
YES
195 x 126 x 82.5 mm
2.1 kgs
45 ~ 150Ah (12V)
<1mA
YES ( 5A current output only)
30 ~ 90Ah (24V)
<1mA
YES ( 2.5A current output only)
Mode 1
14.7V,
15A max
/
Mode 2
14.1V,
15A max
/
Mode 3
14.1V,
15A max
14.7V,
1A max
Mode 4
14.1V,
1A
14.1V,
1A
max
/
Mode 5
14.7V,
1A
14.7V,
1A
max
/
Mode 6
14.4V,
15A
14.1V,
15A max
/
Mode 7
13.5V,
15A
13.5V,
15A
/
Mode 1
29.4V,
7A max
/
Mode 2
28.2V,
7A max
/
Mode 3
28.2V,
7A max
29.4V,
0.5A max
Mode 4
28.2V,
0.5A
28.2V,
0.5A max
/
Mode 5
29.4V,
0.5A
29.4V,
0.5A max
/
Mode 6
28.8V,
7A
28.2V,
7A
max
/
Mode 7
27V,
7A
27V,
7A
/
14.7V, 15A 29.4V, 7A
15A
15A
7A
7A
/
/
/
/
/
/
13.5V,
15A
27V,
7A
Note: Specifications subject to change without notice.
**The above spec. ±0.5V for 12V spec.; ±1.0V for 24V spec.; Amp. ±10% is acceptable.
13.5V, 1A max 27V, 0.5A max

C-30-12 / C-15-24 specification
- 16 -
Note: Specifications subject to change without notice.
Model C-30-12
C-15-24
Voltage range
Frequency range
Efficiency
Power factor
Input socket
Mode Selection
Bulk Stage
Absorption stage (I)
Absorption stage (II)
Float stage
Max. current output
Continuous current output
Recommended battery capacity
Leakage current from battery
Over temperature
Overload
Output short circuit
Microprocessor check
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
Remote Control
Dimension (L x W x H)
Weight
Sleeping Mode Function
INPUT
OUTPUT
PROTECTION
ENVIRONMENT
OTHER
100 ~ 240VAC
50/60Hz
>=85%
1.0 at full load (+/-5%)
IEC plug
55°C±5°C (131°F±41°F)
YES
YES
YES
-15°C ~ +45°C (5°F ~ 113°F)
20 ~ 90% RH non-condensing
-30°C ~ +70°C (-22°F ~ +158°F) , 10 ~ 95% RH
±0.05%°C
(0°C ~ 50°C/32°F ~122°F)
YES
235 x 179 x 90 mm
3.0 kgs
75 ~ 250Ah (12V)
<1mA
YES ( 5A current output only)
45 ~ 150Ah (24V)
<1mA
YES ( 2.5A current output only)
Mode 1
14.7V,
30A max
/
Mode 2
14.1V,
30A max
/
Mode 3
14.1V,
30A max
14.7V,
2A max
Mode 4
14.1V,
2A
14.1V,
2A max
/
Mode 5
14.7,
2A
14.7V,
2A max
/
Mode 6
14.4V,
30A
14.1V,
30A max
/
Mode 7
13.5V,
30A
13.5V,
30A
/
Mode 1
29.4V,
15A max
/
Mode 2
28.2V,
15A max
/
Mode 3
28.2V,
15A max
29.4V,
1A max
Mode 4
28.2V,
1A
28.2V,
1A max
/
Mode 5
29.4V,
1A
29.4V,
1A max
/
Mode 6
28.8V,
15A
28.2V,
15A max
/
Mode 7
27V,
15A
27V,
15A
/
14.7V, 30A 29.4V, 15A
30A
30A
15A
15A
/
/
/
/
/
/
**The above spec. ±0.5V for 12V spec.; ±1.0V for 24V spec.; Amp. ±10% is acceptable.
13.5V,
30A
27V,
15A
13.5V, 2A max 27V, 1A max

C-60-12 / C-30-24 specification
- 17 -
Model C-60-12 C-30-24
INPUT
OUTPUT
PROTECTION
ENVIRONMENT
SIZE
100 ~ 240VAC
50/60Hz
>=85%
1.0 at full load (+/-5%)
IEC plug
55°C±5°C (131°F±41°F)
YES
YES
YES
-15°C ~ +45°C (5°F ~ 113°F)
20 ~ 90% RH non-condensing
-30°C ~ +70°C (-22°F ~ +158°F) , 10 ~ 95% RH
±0.05%°C (0°C ~ 50°C/32°F ~122°F)
328 x 179 x 90 mm
4.0 kgs
13.5V, 2A max
180 ~ 600Ah (12V)
<1mA
YES ( 5A current output only)
27V, 1A max
90 ~ 300Ah (24V)
<1mA
YES ( 2.5A current output only)
Mode 1
14.7V,
60A max
/
Mode 2
14.1V,
60A max
/
Mode 3
14.1V,
60A max
14.7V,
2A max
Mode 4
14.1V,
2A
14.1V,
2A
max
/
Mode 5
14.7V,
2A
14.7V,
2A
max
/
Mode 6
14.4V,
60A
14.1V,
60A max
/
Mode 7
13.5V,
60A
13.5V,
60A
/
13.5V, 60A
Mode 1
29.4V,
30A max
/
Mode 2
28.2V,
30A max
/
Mode 3
28.2V,
30A max
29.4V,
1A max
Mode 4
28.2V,
1A
28.2V,
1A max
/
Mode 5
29.4V,
1A
29.4V,
1A max
/
Mode 6
28.8V,
30A
28.2V,
30A max
/
Mode 7
27V,
30A
27V,
30A
/
27V, 30A
14.7V, 60A 29.4V, 30A
60A
60A
30A
30A
/
/
/
/
/
/
Voltage range
Frequency range
Efficiency
Power factor
Input socket
Mode Selection
Bulk Stage
Absorption stage (I)
Absorption stage (II)
Float stage
Max. current output
Continuous current output
Recommended battery capacity
Leakage current from battery
Over temperature
Overload
Output short circuit
Microprocessor check
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
Dimension (L x W x H)
Weight
Sleeping Mode Function
Note: Specifications subject to change without notice.
**The above spec. ±0.5V for 12V spec.; ±1.0V for 24V spec.; Amp. ±10% is acceptable.

C-90-12 / C-45-24 specification
- 18 -
Model C-90-12 C-45-24
INPUT
OUTPUT
PROTECTION
ENVIRONMENT
SIZE
100 ~ 240VAC
50/60Hz
>=85%
1.0 at full load (+/-5%)
IEC plug
55°C±5°C (131°F±41°F)
YES
YES
YES
-15°C ~ +45°C (5°F ~ 113°F)
20 ~ 90% RH non-condensing
-30°C ~ +70°C (-22°F ~ +158°F) , 10 ~ 95% RH
±0.05%°C (0°C ~ 50°C/32°F ~122°F)
435 x 200 x 135 mm
7.8kgs
13.5V, 5A max
400 ~ 1000Ah (12V)
<1mA
YES ( 5A current output only)
27V, 2.5A max
200 ~ 500Ah (24V)
<1mA
YES ( 2.5A current output only)
Mode 1
14.7V,
90A max
/
Mode 2
14.1V,
90A max
/
Mode 3
14.1V,
90A max
14.7V,
5A max
Mode 4
14.1V,
5A
14.1V,
5A
max
/
Mode 5
14.7V,
5A
14.7V,
5A
max
/
Mode 6
14.4V,
90A
14.1V,
90A max
/
Mode 7
13.5V,
90A
13.5V,
90A
/
13.5V, 90A
Mode 1
29.4V,
45A max
/
Mode 2
28.2V,
45A max
/
Mode 3
28.2V,
45A max
29.4V,
2.5A max
Mode 4
28.2V,
2.5A
28.2V,
2.5A max
/
Mode 5
29.4V,
2.5A
29.4V,
2.5A max
/
Mode 6
28.8V,
45A
28.2V,
45A max
/
Mode 7
27V,
45A
27V,
45A
/
27V, 45A
14.7V, 90A 29.4V, 45A
90A
90A
45A
45A
/
/
/
/
/
/
Voltage range
Frequency range
Efficiency
Power factor
Input socket
Mode Selection
Bulk Stage
Absorption stage (I)
Absorption stage (II)
Float stage
Max. current output
Continuous current output
Recommended battery capacity
Leakage current from battery
Over temperature
Overload
Output short circuit
Microprocessor check
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
Dimension (L x W x H)
Weight
Sleeping Mode Function
Note: Specifications subject to change without notice.
**The above spec. ±0.5V for 12V spec.; ±1.0V for 24V spec.; Amp. ±10% is acceptable.

7.Charging Formula
( A ) . Charging Time
Formula
Example
Charging time will depend on the capacity of your battery and on how
deeply it is discharged. The following equation calculates an approximate
charging time.
Charging time =
where:
Charging Time: Battery recharge time in hours
CAP:
Battery capacity in amp-hours
DOD: Battery depth of discharge in per cent. A fully
discharged battery has 100% DOD
CC:
Charge current, the rated current output of the
charger in amperes
80%:
Typical charging efficiency forlead-acid batteries
A Group size battery rated at 100 amp-hours is 40% discharged, that is,
it has a DOD = 40. Charging time with a C-15L-12 unit is
calculated as follows:
Charging time = = 3.3 hours
CC x 80%
15A x 80%
100Ah x 40%
CAP x DOD
( B ) . Discharging Time
To achieve 50% cycling you should calculate your Amp-hour consumption between
charging cycles and use a battery bank with twice that capacity. To calculate Amp hour
consumption, first look at the rating plate on your AC appliance or tools.
Each appliance or tool will be rated in either AC Amps or AC watts or AC VA(Volts-Amps)
apparent power.
Use one of the following to calculate the DC Amp-hour draw for a 12 Volt system:
(AC Amps x 10) x 1.1 x hours of operation = DC Amp-hours
(AC watts/12) x 1.1 x hours of operation = DC Amp-hours
(AC VA/12) x 1.1 x hours of operation = DC Amp-hours
In all formulas, 1.1 is the factor for inverter/charger efficiency.
Calculate the above for every AC appliance or tool you intend to use on your inverter.
This will give you the total number of Amp-hours used between recharges. Size your battery
bank using this number as a guideline. A good rule to follow is to size the battery bank about
2 times larger than your total Amp-hour load requirement. Plan on recharging when 50% discharged.
Many electric motors have momentary starting requirements well above their operational rating.
Start up watts are listed where appropriate. Individual styles and brands of appliances may vary.
NOTICE: Lead-acid battery is recommended for inverter/charger models, also the LiFePO4 battery.
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8.Charger troubleshooting guide
Problem Possible cause Solution
AC input volt is not
correct
Ensure AC input volt is at charger AC volt acceptable
range.
AC input frequecny isn't
correct
Ensure AC frequency is at charger AC frequency
acceptable range.
Poor connection Check and improve the AC wiring connection.
Defective AC source
switch or breaker Replace the switch or breaker.
The switch of remote
control isn't ON. Please set the switch of remote control to ON.
Poor connection Check and manage the correct connection.
Reverse polarity
Correct the polarity. The fuse may blown. Damage
caused by the reverse polarity is not covered by the
warranty.
Replace the battery.
You can charge the battery with power supply mode
until the battery volt >2v (12v spec.) / >4v (24v spec.),
then change it to charger mode to trigger the charger
function.
Wrong battery spec.
Check and change to the right spec. battery.
Damage caused by the wrong battery connection is
not covered by the warranty.
Defective battery
(short circuit) Replace the battery.
Battery temp. is high Use the battery temp. senser, or allow the battery
cool.
Charge volt is too high Check setting.
Battery capacity is too
small for the load Change the bigger capacity battery.
Display switch is off Turn on the display switch.
Wiring error Improve the wiring.
Recharge the battery a few times after discharge, it
may be help. Or replace the battery.
Battery is aging or
sulfated
Battery discharge is
too fast
No display
No AC input
Battery volt :
< 2V(12V spec.) /
<4V (24V spec.)
Charger can't
detect the battery
load
Battery temp. is too
hot
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