ProFix 20 A Smart Battery Charger

What it is for

A charger that can be left connected is a different product from one that fills a battery in an hour. The maintainer models here hold a battery at its float voltage through winter storage, which is how a battery survives a season in a vehicle that is not being driven; the larger models add a repair cycle that pulses a sulphated cell before charging it normally.

Match the charge rate to the battery, not to convenience: roughly one tenth of the battery's amp-hour capacity is a safe continuous rate, so a 5 A charger suits a 50 Ah battery. Charging a large battery from a maintainer is slow but harmless; charging a small one from a 20 A unit without a current setting is not.

Specification detail

20 A output at 12 V and 24 V, with an EU plug as standard (a UK plug is available on request). Selectable charge current, float and repair modes, reverse-polarity and short-circuit protection, and a status display; supplied with insulated crocodile clips.

• Float mode holds the battery through winter storage without boiling it
• Repair cycle pulses a sulphated cell before the normal charge on the larger units
• Reverse-polarity and short-circuit protection, so a mistake does not cost a battery
• Detachable leads and a charge-status display you can read from across the bay

After-sales

Two-year warranty against manufacturing defects. Spare parts and wear items are kept in stock for the models we sell, so you are not forced to replace a whole assembly over one worn component. Warranty support is handled by e-mail in English, German or French.