Charge current of 600mA makes this ideal for small sealed lead-acid batteries but is also useful as a slow (trickle) charger for larger batteries. and wrong polarity. High spec charger for 6V Lead-Acid batteries: Charges 6V sealed lead-acid batteries 600mA output. Short Circuit Protection Overload Protection Over Temperature Protection Reverse Polarity Protection Supplied with the following. Heavy duty Crocodile clip lead Specifications: Suitable for: 6V Lead Batteries (SLA, VLRA) Weight: 130g Dimensions: 82 x 56 x 50mm (casing only) Crocodile clips max opening: approx 20mm