MED HP Batteries
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Installation & User Guide
Installation & User Guide
HP Batteries; Medium Size
17
1)
Turn off all major loads (e.g. inverters, pumps etc.). Small loads such as lights and fridges are OK
to remain connected
–
provided that they draw less current than what the charger can supply.
However, all connected loads will draw current from the charger and so will reduce the rate at
which the battery charges.
2)
Connect your charger(s)
–
maximum input current should be limited to 45 Amps.
3)
If you have an LBS AC charger (or solar panels/alternator into an LBS BIC battery), this will
automatically charge the battery up to an acceptable level, after which the battery will connect
again. (Just check your AC mains/shore power is connected and switched on!)
4)
If you have another brand of charger, it may not charge automatically until it can “see” the
battery, which means you may need to reset the battery before your charger will begin charging.
You can reset the battery by pressing the power button off and on again, or by pressing Enter on
the Monitoring Screen. This will allow 1 minute for the charger to start up and start charging.
5)
You may also need to reset your charger (after resetting the battery), by turning the charger
switch OFF and ON again, or disconnecting and reconnecting the AC mains/shore power.
It is worth noting that LVD is based only on voltage; i.e. the Level / SOC % does not affect this.
Therefore, the Level could be 0% well before the disconnection occurs (this is intentional
–
similar to
the reserve fuel tank of a vehicle). Conversely the Level reading may have lost track slightly and
predict that more capacity is left that there actually is, so the LVD may happen earlier than expected.
This is OK, as the Level reading will reset after an LVD event.
Short Circuit & Surge Overload
Protection 6 or 7 may occur when an inverter or motor controller is connected to the battery
–
such
loads have very high inrush currents into their capacitors, and this is detected by the BMS as a short
circuit or overload condition, even though it happens far too quickly to trip a circuit breaker or blow
a fuse.
The BMS has a built-in Pre-Discharge circuit to avoid this issue by limiting the inrush current into
such loads during the first few seconds; however, this only operates when the BMS turns on or
recovers from reset.
Therefore:
1.
Always connect capacitive loads with the battery OFF, and the load (inverter / motor controller)
OFF.
2.
When turning ON the battery, or resetting a Protection, always ensure the inverter / motor
controller is OFF.
3.
Wait at least 5 seconds after turning on or resetting the battery before turning ON the
inverter / motor controller and powering an appliance or motor.
Comms reset:
If there is ever an issue with communications from a battery, this can be resolved by resetting the
battery:
Press
Shutdown
(little black pushbutton near blue backlight power button on top of battery)
