Exotronic 12V Axion CANBus Lithium Battery

EXOTRONIC

Axion Battery
Product Manual & Safety Notes

For Exotronic Axion CANBus Bluetooth Lithium Batteries

Includes standard caravan version and Marine Version notes

Install by a competent person Use correctly rated cables, fuses, terminals and mounting hardware.

Fuse the positive outputThe fuse must protect the cable and must not exceed 1.5C of the battery rated continuous current, and must protect the cables and equipment it is powering.

Turn off before connection work Use the On/Off button and isolate chargers and loads where practical.

Charge at least every 3 months Do not leave the battery deeply discharged or unattended after a low-voltage trip.

Standard version uses a safety vent Route the integrated Axion vent connection to outside using 10 mm OD PTFE tube where required.

Marine Version uses alarm output The Marine Version is IP67 and has a 12V alarm output rather than a vent connection.

! Important safety note

This product manual covers general operation, safety, Bluetooth app use, venting notes and parallel wiring guidance. The complete installation, including mounting, cabling, fusing, sealing, ventilation or alarm wiring, labels and user instructions, must still comply with all applicable standards, regulations and industry best practices and requirements.

Do not modify, drill, open, crush, pierce or pressure test the battery. Incorrect installation or operation may result in battery damage, unsafe operation, shortened service life and may affect warranty coverage.

Operating Notes & Limitations

Follow these notes to maintain accurate monitoring, safe operation and long battery service life.

Item	Note / Requirement
State of Charge display	The State of Charge monitor may not accurately measure very low current below approximately 1A. Over several weeks, this can cause the displayed State of Charge to drift. To re-calibrate, complete a full charge cycle, or charge the battery above 14.2V and set the State of Charge to 100% in the Bluetooth app.
BMS restart after shutdown	If the BMS has shut down after a low-voltage event or trip, connect the battery to a suitable lithium battery charger or power supply to restart the BMS.
Cell balancing	After long periods of storage, light use, or repeated fast charging, the cells may become unbalanced. The built-in active balancer will correct this over time. To allow balancing, charge the battery to 14.2V and allow the charger to hold this voltage until balancing is complete.
Storage charging	Charge the battery at least once every 3 months when not in regular use.
Low-voltage trip	If the battery trips on low voltage and is left unattended for several weeks, the cells may continue to drop in voltage and the battery may become unrecoverable. The battery must be charged within 72 hours after a low-voltage trip.
Recommended operating range	To extend service life, it is recommended to use the battery between 10% and 90% State of Charge where practical.
Over-current trip reset	Over-current trips will automatically reset after approximately 60 seconds, provided the overload or fault has been removed.

Installation & Handling Warnings

Risk of Fire / Explosion

Operate the battery only within the specified voltage, current, temperature and installation limits. Ensure terminals are correctly torqued, cables are adequately rated, and terminal bolts are not bottomed out.

Do not short circuit the battery terminals.
Do not allow conductive dust, swarf, moisture or loose hardware to accumulate between terminals.
Always check polarity before connecting or powering equipment.
Do not expose the standard caravan version to direct sunlight, seawater, pressure washing or wet areas.
Do not install near heat sources, exhaust components, engine bays, fuel systems or other high-temperature areas.
Do not store bedding, clothing, paper, chemicals or other flammable materials against the battery, terminals, cabling or vent path.
Always fuse the positive output of the battery. The fuse must protect the cable and connected equipment and must not exceed the battery model’s published maximum discharge rating. As a general upper limit, do not exceed 1.5C unless Exotronic specifies otherwise.

Caution

Must be installed by a competent person.
Not suitable for engine cranking or starting applications.
Do not dispose of the battery in fire.
Do not open, modify or disassemble the case.
Do not drop, crush, impact, pierce or mechanically damage the battery.
Do not connect or disconnect under load where this can cause arcing.

Before connection or disconnection, turn off the battery using the On/Off button and isolate all chargers and loads where practical.

Battery Venting & Marine Alarm Output

Axion battery versions use different safety arrangements. Confirm the product version before installation.

Standard Axion Caravan Version

The standard Axion caravan battery includes an integrated safety vent connection on the battery enclosure. When external venting is required, connect only 10 mm OD PTFE tube to the battery vent fitting and route the tube to the outside of the caravan in accordance with the Axion Battery Safety Vent Installation Guide.

The vent tube must be kept short, supported, routed downward where practical, and terminated outside the caravan with a protected open vent. The outlet must remain lower than the battery vent height and must not be able to draw in water.

View venting manual

Marine Version

Battery venting is not applicable to the Marine Version. The Marine Version is IP67 and uses a dedicated 12V alarm output rather than a vent connection.

Connect and test the 12V alarm output as required by the complete marine electrical system, vessel design and applicable installation requirements. The Marine Version must not be modified, drilled, opened or fitted with a vent tube.

Version check before installation

If the battery has a factory vent fitting, follow the Axion venting manual. If the battery is the Marine Version, use the 12V alarm output and do not attempt to add a vent.

JK BMS App

To download the JK BMS app, search for "JK BMS" in the Android Play Store or Apple App Store, or use the links below.

Wiring Notes

When batteries are connected in parallel, loads and chargers must be connected so current is shared evenly between all batteries. Poor current sharing can cause uneven wear, imbalance between batteries, nuisance trips, or one battery carrying most of the load during high-current operation. The examples below show acceptable wiring practices when using a battery terminal fuse per battery.

Figure 1 - Parallel Wiring

Item	Wiring requirement
Parallel current sharing	Loads and chargers should be connected so current is distributed evenly through the battery bank.
Cable length	Use equal-length battery cables to common positive and negative busbars where practical, or connect the main positive and main negative at opposite ends of the parallel battery bank as shown in the wiring examples.
Cable and fuse rating	Use appropriately rated cables, fuses, busbars and isolation devices for the maximum possible current.
High-current systems	If an inverter, charger or load can exceed the rating of a single battery, ensure the battery bank has enough batteries in parallel to safely share the current. For high-current inverter systems, increasing the number of batteries in the bank can reduce stress on each battery and reduce the risk of cascading trips under heavy load.

Do Not Install or Operate This Way

Do not use the battery for engine cranking or starting.
Do not install the standard caravan version in wet areas, unsealed underbody carriers, open trays, under-bonnet locations or areas exposed to road spray.
Do not bypass the BMS, fuse protection, isolation devices or safety outputs.
Do not connect multiple batteries with unequal cable lengths where this causes one battery to carry most of the load.
Do not exceed the battery model’s published charge, discharge, voltage or temperature limits.
Do not leave a battery unattended for several weeks after a low-voltage trip.
Do not modify the case, terminals, vent fitting, alarm output or communication ports.

Installation Checklist

Battery version confirmed before installation: standard vented caravan version or IP67 Marine Version with 12V alarm output.
Battery mounted upright, secured and protected from mechanical damage.
At least 10 mm clearance maintained around the battery body where required for inspection and service access.
Positive output fused according to cable rating, equipment rating and battery model limits.
Terminals correctly torqued and terminal bolts are not bottomed out.
Polarity checked before powering equipment.
Cables, busbars and isolation devices rated for maximum expected current.
Parallel battery cables arranged for even current sharing.
Standard Axion caravan version vented in accordance with the Axion Battery Safety Vent Installation Guide where required.
Marine Version 12V alarm output connected and tested where required by the marine installation.
Bluetooth app connection tested and customer shown basic operation.
Customer advised to charge at least once every 3 months and within 72 hours after a low-voltage trip.

Installer Notes

This document is a general product manual and safety guide for Exotronic Axion batteries. The complete system design, battery mounting, cable sizing, fuse selection, sealing, venting or alarm wiring, labels and user handover remain the responsibility of the installer, vehicle builder or competent person completing the installation.

Always install in accordance with the battery specifications, applicable Australian Standards, local regulations and the vehicle or vessel manufacturer requirements. Contact Exotronic if the required installation cannot meet the battery operating limits, venting requirements, marine alarm requirements or wiring requirements.

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