It is best to refer to the user manual of your application for proper charging instructions.
- GEL batteries require a GEL charger
- Never fully discharge a SLA battery, this will shorten or completely end its life cycle
- A standard overnight charge (6-8 hours) should be sufficient for most batteries
- Do not leave batteries on chargers for extended periods of time that are not designed to maintain/float the charge.
- Batteries must be "broken in" and usually will not reach full capacity until 10-30 cycles
There are 3 stages to charging batteries.
- Bulk Charge- Set to charge at the maximum safe rate until charging nears 80-90%
- Absorption Charge- Gradual decline in current as internal resistance increases
- Float Charge - After a complete charges is obtained the charge voltage decreases. This stage is known as maintenance or trickle charging to sustain but not over charge the battery.
Most consumer chargers are supply bulk charge only and should not be left on the battery for long periods of time.
Characteristics of constant voltage chargers
