Jarocells ARO-BTP Series User manual

MANUAL
LITHIUM ION BATTERY
JARO-BTP SERIE
JAROCELLS.NL
>JARO-BTP20.12
>JARO-BTP50.12
>JARO-BTP75.12
>JARO-BTP100.12
>JARO-BTP125.12
>JARO-BTP50.24+12
07 / 2021

2
SPECIFICATIONS JARO-BTP PORTABLES
Parameter BTP20.12 BTP50.12 BTP75.12*
Capacity 20Ah 50Ah 75Ah
Voltage nominal 12,8V
Output voltage range 11,0 - 14,6V
Maximum motor thrust 30lbs 55lbs 65lbs
Voltage during charging 14,5V ±0,2V
Maximum charge current 20A 50A 75A
Recommended charge current <10A <25A <40A
Temperature during discharge -20 - 50°C
Temperature during charging 0 - 45°C
Electrical power per case 360W 600W 900W
Maximum discharge peak current (3 sec.) 40A 80A 150A
Maximum discharge current 30A 50A 75A
Battery disconnect voltage at 8V 10V 10V
Length 300mm 300mm 417mm
Width 119mm 196mm 221mm
Height 249mm 249mm 334mm
Weight 4,5kg 8,6kg 11,8kg
Maximum current 12V car connector 20A
BTP20.12 BTP50.12 BTP75.12
Voltmeter Motor connector
USB connector
12-volt car connector

SPECIFICATIONS JARO-BTP PORTABLES
3
MANUAL LITHIUM ION BATTERY JARO-BTP SERIE
BTP100.12 BTP125.12 BTP50.24+12
*12V Top loader cases can be upgraded
to a max. of 125Ah
Parameter BTP100.12* BTP125.12 BTP50.24+12
Capacity 100Ah 125Ah 50Ah
Voltage nominal 12,8V 25,6V
Output voltage range 11,0 - 14,6V 22,0 - 28,6V
Maximum motor thrust 80lbs 80lbs 80lbs 24V
Voltage during charging 14,5V±0,2V 29,0 ± 0,2V
Maximum charge current 100A 100A 50A
Recommended charge current <40A <40A <25A
Temperature during discharge -20 - 50°C
Temperature during charging 0 - 45°C
Electrical power per case 1200W 1200W 1200W
Maximum discharge peak current (3 sec.) 250A 250A 140A
Maximum discharge current 100A 100A 50A
Battery disconnect voltage at 10V 10V 20V
Length 417mm 417mm 417mm
Width 221mm 221mm 221mm
Height 334mm 334mm 334mm
Weight 14,3kg 16,8kg 14,8kg
Maximum current 12V car connector 20A 12V 20A

4
SAFETY GUIDLINES
General safety
Attention should be paid to all safety instructions in this manual. Keep the manual located close to the battery for future
reference. Maintenance or repair work should only be carried out by qualified personnel. A damaged or abnormal functioning
battery should not be used. Keep the battery away from children. The battery should be used for general purpose, small
drive trains and source for static electrical equipment. The batteries should not be used for critical equipment like medical
equipment unless a thorough risk analysis has been conducted. Furthermore, the battery can be used for light drive
systems as well as for power supply of static equipment.
Explosion and fire
>The battery terminals have a dierent polarity. For this reason, you should prevent that positive and negative wires
come into contact with each other with the risk on sparks.
>The battery case should not come in contact with fire or be placed close to a heat source.
>Contact with very humid air and splash water is allowed but don’t leave the case out in the rain for long periodes.
>When there is doubt whether water has entered the case, please open the lid and let the case dry in an area with dry
and warm air.
>Use a type D, foam or CO2type fire extinguisher in case of fire.
Safety and protection
>Never try to open or dismantle the battery. The battery contains electrolyte. Under normal operational conditions contact
with the electrolyte is impossible. If the battery case is damaged do not touch the electrolyte or other materials released
from the battery. In case of contact with the electrolyte: rinse thoroughly with water and consult a doctor.
>Prevent damaging of the battery case. A damaged battery case should not be used anymore.
>A damaged battery has to be disposed according local guidelines as small chemical waste.
>Prevent mechanical shock and extreme vibrations as the batteries can get damaged. Never cut or drill in the case.
>Prevent contact with the terminals inside the connectors.
>Use only special LiFePO4chargers or standard chargers programmed to be used within the specifications of the batteries.
Instructions for connecting portable cases
>Use cables of sucient thickness. Pay attention to the required current load and length of the cables.
>Putting batteries in series is not allowed for battery cases. The cases must not be used in series. If a higher voltage is
desired, choose the 24V version.
>Up to eight batteries can be placed in parallel to increase the capacity. For safety reasons however it’s recommended to
limit the current to two times the maximum current of one battery or to fuse every battery separately by a fuse of two
times the maximum continuous current of one battery. This is to avoid large current spikes across one battery as the
other batteries would fail. When connecting in parallel, special attention must be paid to the connecting wiring. Ask for
advice from JAROCELLS B.V..
Charging and discharging
>Check the mains on the right voltage before connecting your battery charger to the mains.
>The battery may only be charged with the cables supplied with the battery charger. Extending the charger cables can
cause slow or not completely charging of your battery because it can no longer properly detect the voltage of the battery.
>The battery may only be placed in a dry environment, in a non-flammable environment and on a non-conductive surface
be charged.
>Only a charger suitable for LiFePO4may be used to charge the battery.

5
MANUAL LITHIUM ION BATTERY JARO-BTP SERIE
>The battery must not be charged with damaged cables. Check this before charging the batteries.
>Use the charger in a dry environment. The charger should not come into contact with moisture unless it is a waterproof
charger.
>Rapid temperature changes can lead to condensation. If this happens, wait until the charger is dry and has assumed the
correct temperature of its environment.
>A JARO-BTP Portable cannot be overcharged, is protected against over-discharging and will not be damaged when
completely discharged.
>When discharging, ensure that the maximum current remains within specifications. It is important that sucient
battery capacity installed to prevent operating outside specifications at maximum consumption. Although the battery
switches o at high current, this only happens after a certain time to be able to absorb peak currents. Working outside
the normal current range regularly will shorten the life of the battery.
>The battery has a self-discharge of 3 to 5% per month. This is of course faster with connected equipment. Check the
battery regularly for State of Charge (SOC) and charge it if the battery is less than 50% SOC or less than 12.8V (12V BTP)
or 25,6V (24V BTP).
NOTE: The SOC (State of Charge) meter in the app is based on the Coulomb principle. This means that the reading is
accurate but needs to be calibrated before use after a period of more than 14 days not using the battery. This because
the reading will slowly loose it’s precision. For the battery pack this is not important because it’s only a calculation. So,
after a longer stand still, charge the battery until the charger stops. The app will calibrate on 100% on this point and will
be accurate again for the next 14 days.
>In case the battery is not used for a longer period of time it is recommended to disconnect all the equipment from the
battery to prevent discharge by e.g. monitoring instruments.
>The battery should not be charged when the temperature of the battery is below 0°C. Discharging the battery up to
-20°C is allowed. Since the battery temperature will increase during discharge, charging can be done directly after
discharge when the temperature is over 0°C.
>A fully discharged battery should be recharged within 24 hours. The loads will be disconnected automatically when the
battery is fully discharged but the remaining energy is minimal. Self-discharge can lead to damage of the battery when
the battery is left in fully discharged state for a longer period.
>Even if the battery is not completely discharged, it is recommended to fully charge the battery at least once a month to
recalibrate the internal measurements to ensure that the reading remains reliable.
>Each case has a push button to switch o the USB charger and the Voltmeter. This is necessary if the case is longer time
is not used. If not switched o, the case is discharged in a few weeks.
Warning when used in parallel or series
>When used in parallel, the batteries must be charged to the same State of Charge (SOC) level. So charge the batteries
separately completely and then connect them in parallel.
>If batteries connected in parallel are partially or completely discharged, one of the batteries must not be replaced by a
full battery. This is harmful to the batteries. In this case, charge all batteries individually to full and then switch them
o parallel again.
>It’s not allowed to connect them in series.
Warnings for transportation
>Transportation of the battery cases should be done packed in the original packaging or a packaging suitable to protect
the battery case against shock of falling on the ground.
>Make sure the batteries are fixed properly during transport to prevent shifting of the load.
>Avoid mechanical shocks such as knocks and falls.

6
THE JAROCELLS APP
General
All information that is available within the battery about the degree of charge, power consumption, voltage, temperature,
etcetera is made available via a wireless bluetooth connection to be read via our JAROCELLS App on an Android or
Apple device.
To download and install
>The App is available for Android (from version 4.3) and
Apple (from iOS version 7.2) devices.
>Download and install the JAROCELLS App from the Google Playstore
or the App store.
Connect to the JAROCELLS battery
>Open the JAROCELLS App on your device.
NOTE: The battery must be within a range of <6 meters from your device.
>When the App is activated, it will search for JAROCELLS batteries in the area.
The names of the found batteries will be listed on the screen.
>Click on the battery you want to connect to. You will see the message “Connecting”.
>The App connects to the chosen battery and will display the data from this battery.
Available information
>When you have established a connection with your battery, the basic information
appears the screen. In the center you see the degree of charge of the battery (the
percentage, also known as the State of Charge) and below the voltage,
the capacity of the battery and the status. At “Estimated duration” you can see
the time it takes for the loading to complete, if the battery is being charged or the
time remaining until the battery is empty when it becomes empty and the load
does not change.
>If you swipe left (swiping motion) the following screen appears with actual
information: the voltage, the current (when charging / discharging), the temperature
of the battery and the number of charging cycles. The latter is the number of times
the battery is complete discharged and recharged (for the full capacity).
>After swiping left again, the System info screen will appear. This screen shows
notifications of possible particularities.
Change the name of the battery
>Give each battery a unique name.
>Connect your device to the battery and click on the three dots next to each other
in the upper right corner. Then tap the field with the current name.
>Enter the password 5678 and confirm with “Confirm”.
>Rename the battery (max. 18 characters) and confirm.
>The connection will now be disconnected and the battery will now run with the
new one name can be found.

7
MANUAL LITHIUM ION BATTERY JARO-BTP SERIE
Troubleshooting if the connection is lost
>What to do if the connection to the battery is lost?
“Kill” the JAROCELLS App and restart the App. NOTE: By “Kill the App” we mean that the App must be complete be
turned o and not just closed. You do this as follows:
Apple: Double-click on the home button or (from iPhone 11) slowly swipe up from the bottom of the screen and stop
halfway down the screen. The App Chooser is activated; then swipe up the App previews to close it completely.
Android: Click the Overview button so that all running Apps are visible and swipe the JAROCELLS App up from it screen.
Make sure you are within a radius of <6 meters from the battery. The battery’s Bluetooth transmitter has a range of
up to about 6 meters.
>With my Android device I do not see any batteries in the app?
When installing the JAROCELLS App on an Android device, you will be asked to access your location. This one function
must be allowed, otherwise the App will not function properly. Location (GPS) must also be on with an Android device
if you use the App.
>I try to connect to another device but cannot establish a connection?
The battery can only be connected to one device at a time. First disconnect and / or “kill” the app before connecting
to another device.
WARRANTY
>The warranty period is two years for the battery with attachments.
Warranty provision
>The warranty applies to normal use according to recommendations and within specifications of the product.
>Warranty is only given if the purchase invoice can be submitted.
>The warranty does not go beyond repair or replacement of the delivered goods. Consequential damage is expressly
stated excluded.
>In all cases where the warranty conditions are not clear, an attempt will be made to resolve the complaints within
reason unload. This within the provisions of liability.
Liability
>Besides the warranty provisions on the delivered goods, JAROCELLS B.V. will not accept any liability. JAROCELLS B.V.
shall not be liable for any direct, incidental or consequential damages of any nature, or losses or consequential damages
or losses or expenses resulting from the use of this product.
>The user of the product should take all precautions, required to prevent damage.
>In case JAROCELLS B.V. will be held responsible for damage or losses caused by the product, the compensation payed
by JAROCELLS B.V. will not exceed the payments of the assurance company. When the damage is not covered by the
insurance, the maximum payment will be equal to the total of the invoice.
>Liability and right to warranty is in any case excluded with:
• Damage due to external disasters such as lightning strike
• The use of an unsuitable charger
• Incorrect installation or use
• Repairs have been carried out by third parties or changes have been made to the product
• Using the battery if water or possible water has entered the housing of the equipment
• Using the battery when defects are visible or signaled (such as heat distortion, smelling scorching air, loosening of
parts, etc.)

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JAROCELLS B.V., Waldorpstraat 345, 2521 CJ Den Haag, The Netherlands. [email protected] / www.jarocells.nl