Output: 12/24V - 15/10A. Battery Range: 40-230Ah Lead Acid. Fully automatic multistage microprocessor controlled battery charger and maintainer. Battery life and condition optimised by constantly monitored and adjusted charge output. Staged charging includes thermal runaway, integral ventilation and spark proofing for maximum safety. Reverse polarity protection in case incorrectly connected to battery. TWO YEAR GUARANTEE FROM A REPUTABLE UK COMPANY – Founded in 1978, Sealey is a large family run business with a vast product range. Trusted by professionals, all Sealey products are thoroughly tested and backed by unrivalled aftersales service.