Battery balancer Charge equalizer
Balancer charge equalizer for 12V batteries.
With 12V batteries installed in 24V or 48V systems, it often happens that the batteries are charged differently due to slight differences in capacity.
One battery becomes overcharged and the other battery is not yet fully charged.
The consequence of this difference in charge status is:
- Sulfation of the battery that is never fully charged (loss of capacity)
- Severe oxidation and drying out of the overcharged battery
In both cases, the service life of the battery is greatly reduced.
In 48V systems, this difference in battery charge is even more pronounced, as 4 batteries should have the same voltage.
When 2 or 4 batteries are connected in series, the charger can only detect the total voltage and not the 2 or 4 individual voltages of the batteries.
if the voltage difference in series-connected batteries exceeds 10 mV, the balancer switches on.
The balancer draws its energy from the connected batteries.
The charge equalizer (balancer or equalizer) attempts to equalize the individual battery voltages so that the individual battery voltages are always the same. When discharging 24 or 48V systems, all batteries are then discharged evenly, preventing undervoltage of the individual batteries.
Since 12V batteries always have small manufacturing tolerances, it is strongly recommended to use these charge equalizers in 48V systems. Otherwise, within 6 months, there will be a significant difference in the individual battery voltages, resulting in premature aging of the batteries.
A charge equalizer is required for a 24V battery bank consisting of two 12V batteries.
For a 48V battery bank consisting of 4 x 12V batteries, 3 charge equalizers are required.
see diagrams
Technical data:
Starting voltage: 26V
Voltage difference: < 0.1V
Max. equalization current: 2A
Manufactuerer Information
Westech
Westech-Solar Energy GmbH
Robert-Bosch-Straße 11
85748 Garching
Germany
Mail: info@westech-energy.com
Tel.: +49 89 89545770