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12 Volt Battery Chargers

iSustain Australia sells a range of 12V Battery Chargers suitable for all deep cycle batteries, including flooded, agm and gel. We also offer free shipping to regional Australia.

Victron Centuar
Victron Centuar

Woods Battery Charger
Woods BETAcharge

12V Battery Charger Information

It is recommend to charge batteries at about 10% of their amp hour capacity. For example, an 80Ah deep cycle battery should be changed at a rate of about 8A.
SLA, AGM and Gel batteries are traditionally charged at a lower voltage than Flooded Lead acid batteries.

Different types of batteries require different charging regimes. SLA, AGM and Gel batteries are traditionally charged at a lower voltage than Flooded Lead acid batteries.
Multi-stage chargers are recommended because they adjust current and voltage according to the battery's requirements.

Multistage charging ensures batteries receive optimum charging, but with minimal wear and tear, regulating the voltage and current delivered to the batteries in three automatic stages -

Bulk, Absorption, and Float:

1. Bulk - Replaces 70-80% of the battery’s state of charge at the fastest possible rate.
2. Absorption - Replenishes the remaining 20-30% of charge, bringing the battery to a full charge at a slow, safe rate.
3. Float - Voltage is reduced and held constant in order to prevent damage and keep batteries at a full charge.


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12 Volt Battery Chargers
Remote Power Supplies - iSustain Australia