Victron Battery Balancer

The Victron Energy Battery Balancer (MPN BBA000100100) is a state of charge equalizer or voltage equalizer for 24V and 48V battery banks.

It balances the state of charge of two 12V batteries connected in series or of several parallel strings of batteries connected in series.

The balancer thus prevents damage to the battery due to an imbalance in the state of charge.

The problem: The service life of an expensive battery bank can be significantly shortened by an imbalance in the state of charge

A battery with a slightly increased internal leakage current in a 24V or 48V bank consisting of several batteries connected in series/parallel,

that this battery and batteries connected in parallel are not sufficiently charged and, in the case of batteries connected in series, overcharging occurs in this case.

In addition, new cells or batteries should all have the same initial state of charge when they are connected in series.

Smaller differences can be ironed out during the constant voltage phase or the equalization charge.

Larger differences, however, lead to excessive gassing (which is caused by overcharging) in the batteries,

that had a higher initial state of charge and due to sulphation (caused by the lack of charging) in the batteries

with a lower initial state of charge.

The solution: Battery balancing with the Victron Battery Balancer

The Battery Balancer balances the state of charge of two or more 12V batteries connected in series.

When the charging voltage of a 24V battery system rises above 27.3V, the Battery Balancer switches on and compares the voltage of the two batteries connected in series.

of the two batteries connected in series. The battery balancer draws a current of up to 0.7V from the battery (or the batteries connected in parallel) with the highest voltage.

a current of up to 0.7A. The resulting difference in charging current then ensures that all batteries are equalized to the same state of charge.

If necessary, several balancers can be connected in parallel.

A 48 V battery bank can be balanced with three battery balancers.

LED displays

Green: on (battery voltage > 27.3V)
Orange: lower battery circuit active (deviation > 0.1V)
Orange: upper battery circuit active (deviation > 0.1V)
Red: alarm (deviation > 0.2V) Remains active until the deviation has fallen below 0.14V or until the system voltage falls below 26.6V.

Alarm relay

Normally open. Closes when the red LED switches on and opens when the red LED switches off.

Reset alarm

Two connections are available for connecting a pushbutton. If the two connections are coupled, the relay is reset.
The "Reset" status remains active until the alarm has passed. The relay then closes again.

Scope of delivery:
1x Victron BBA000100100 Battery Balancer
1x Operating instructions

Shipping costs:

Normal package: 9.
PRIO Normal package: 15.
Bulky goods package: 29.
Prio bulky goods package: 39.00
3x or more bulky goods parcels: 49.00
Prio 3x or more bulky goods parcels: 69.00
Piece goods: 99.
Collection: Free of charge

We deliver throughout Switzerland and to Liechtenstein. 

The costs are displayed in the checkout BEFORE payment. 

Bulky goods packages Parts with one side longer than 1 meter, e.g. Armaflex, solar, felt, aluminum profiles... 

General cargo: These are some batteries or large items that have to be shipped by freight forwarder. (Air conditioners...)

PRIO (selectable in the checkout at an additional cost) means that we pack these parcels first and hand over orders to the post office by 16:00 on the same day. These parcels are handed over to the post office with PRIO stickers and should arrive the next day. 

A pick-up in Winterthur can be selected at check-out. Please leave your email so that our system can let you know when it is ready for collection. (Usually happens within 24 hours)