Battery Balancer




Victron Energy BBA000100100 Battery Balancer

The Battery Balancer equalizes the state of charge of two series connected 12V batteries, or of several parallel strings of series connected batteries.When the charge voltage of a 24V battery system increases to more than 27V, the Battery Balancer will turn on and compare the voltage over the two series connected batteries. The Battery Balancer will draw a current of up to 1A from the battery (or parallel connected batteries) with the highest voltage. The resulting charge current differential will ensure that all batteries will converge to the same state of charge.

If needed, several balancers can be paralleled.
A 48V battery bank can be balanced with three Battery Balancers.


Victron Battery Balancer
Input voltage range Up to 18 V per battery, 36 V total
Turn on level 27,3 V +/- 1%
Turn off level 26,6V +/- 1%
Current draw when off 0,7 mA
Midpoint deviation to start balancing 50 mV
Maximum balancing current 0,7 A (when deviation > 100 mV)
Alarm trigger level 200 mV
Alarm reset level 140 mV
Alarm relay 60 V / 1 A normally open
Alarm relay reset Two terminals to connect a push-button
Over temperature protection yes
Operating temperature -30 t0 +50 øC
Humidity (non condensing) 95%
Colour Blue (RAL 5012)
Connection terminals Screw terminals 6 mmý / AWG10
Protection category IP22
Weight 0,4 kg
Dimensions (h x w x d) 100 x 113 x 47 mm
Safety EN 60950
Emission EN 61000-6-3, EN 55014-1
Immunity EN 61000-6-2, EN61000-6-1, EN 55014-2
Automotive Directive EN 50498

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