VICTRON Battery Balancer

Batteries connected in series of a 24 V battery bank can have different charge states, which can lead to an increasing imbalance during operation and when using 24 V charging technology. This can result in premature failure of the battery bank. A battery balancer can remedy this. The balancer becomes active at a voltage of 27.3 V and above and balances the state of charge of the two 12 V batteries connected in series with a current of max. 0.7 A. In doing so, up to 1 A is taken from the battery with the highest voltage. In addition, LED status indicators help to keep an up-to-date overview at all times and an integrated alarm sounds if the deviation is greater than 0.2 A.
For large capacity battery banks, several balancers can be connected in parallel. Two balancers are required for a 36 V battery bank and three for a 48 V bank.

Connection example with 2 batteries
This Victron Battery Balancer is connected to two 12V batteries (24V system) connected in series.
Connection example with 4 batteries
Three battery balancers connected to four 12V batteries in series (48V system).
Technical Data

Input voltage range	Up to 18 V per battery (36 V total)
Turn-on level	27.3 V
Turn off level	26.6 V
Power consumption when switched off	0.7 mA
Max. compensation current	0.7 A (if deviation> 100 mV)
Level at which alarm is triggered	200 mV
Level for resetting the alarm	140 mV
Alarm relay	60 V / 1 A normally open
Reset the alarm relay	Two connections for connecting a push button
Overheating protection	Yes
Operating temperature	-30 to +50 ° C
Humidity	95%
Screw terminals	6 mm²
Protection category	IP22
Dimensions (h x w x d)	100 x 113 x 47 mm
Weight:	0.4 kg

FAQs

• What is the maximum battery capacity (Ah) that can be connected to a battery balancer?

• Can I also connect this balancer to lithium batteries (LiFePO4)?