Exotronic Alpha Smart Bluetooth Lithium Battery Manual
Notes & Limitations
• The State of Charge monitor cannot read current below ~1A and can drift out of several weeks of no use. Complete a full charge cycle to re-calibrate
• After a trip, either press the On/Off/Reset Button twice to reset, or connect to a suitable power supply or charger to restart the BMS.
• After long periods of no use, or if continuously fast charging, the cells may get out of balance. The active balancer will correct this issue, to allow the balancer time to work, trickle/slow charge the battery to 14.2-14.4V and allow to hold that voltage until balanced.
• Charge at least once every 3 months
• If the battery trips on low voltage, and is left unattended for several weeks, the cells will continue to drop voltage and the battery may become unrecoverable – the battery must be charged within 72 hours after a low voltage trip.
• To extend the service life, it is recommended to use the battery between 10 and 90% State of Charge.
• Over-current trips will automatically reset after 30s.
Warning
To maximise the longevity and safety of your new lithium batteries, please ensure you follow stay within the specified parameters. Ensure terminals are torqued and bolts are not bottomed out. Failure to do so could result in shortened lifespan and void your warranty.
Risk of Fire / Explosion
• do not short circuit the battery or allow excess dust/moisture between terminals
• Always check polarity before powering equipment on
• Do not expose to direct sun light or sea water
• Do not install near heat sources
• Always fuse the output positive of the battery with a fuse no greater than 2C
Caution
- To be installed by a competent person
- Not for cranking / starting
- Do not dispose of in fire
- Do not open case
- Do not drop, impact or pierce
Before connection/disconnection, turn off the battery via the On/Off/Reset button Button position - up
BMS Apps
There are many apps available for use with the JBD BMS, the apps we recommend can be found here:
Wiring Notes
Figure 1 - Parallel Wiring
It is essential that all loads and chargers from the batteries evenly distribute current through the batteries, otherwise the batteries will not wear evenly, and excessive differences may cause a battery to fail under heavy loads, such as a large inverter loading one battery most. If using an inverter or charger greater than a single battery is rated for, it is recommended that a third battery is installed, reducing the risk of a cascading failure mode.
The number of parallel batteries is effectively unlimited if each is individually fused to a common bus. This ensures safety and allows for more flexibility in your setup while maintaining system balance.
Never wire Any loads from the 12V, 24V or 36V terminals, if other voltages are required, you must use a converter, i.e. a 48/36, 48/24 or 48/12 converter across the string of batteries.
Battery balancers serve two purposes:
1. Keep batteries balanced: Each two sets of batteries will be monitored and if a voltage difference appears, the balancer will move the charge from one battery to the other
2. Alarm if out of balance: If the voltage difference is too great, battery balancers will make an audible alarm to allow you to intervene before damage to the batteries occurs.
