The QuadLink is compatible with most 6-volt or 12-volt battery maintenance charger up to 8 amps using the standard 2-prong output connector. The capabilities of your current charger are simply being passed through to the batteries via the QuadLink so the battery charger is always in full control of the charging process. In other words, the QuadLink is almost transparent to the battery. Lugs connect directly to the battery terminals.