Battery Balancer BBT

75.50  incl VAT

In stock

SKU: BBT-12 Categories: ,


  • 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.
Input voltage rangeUp to 18 V per battery, 36 V total
Turn on level27,3 V +/- 1%
Turn off level26,6V +/- 1%
Current draw when off0,7 mA
Midpoint deviation to start balancing50 mV
Maximum balancing current0,7 A (when deviation > 100 mV)
Alarm trigger level210 mV
Alarm reset level140 mV
Alarm relay60 V / 1 A normally open
Alarm relay resetTwo terminals to connect a push button
Over temperature protectionyes
Operating temperature-30 t0 +50 °C
Humidity (non condensing)95%



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