Portable battery chargers are suitable for most conventional lead acid (wet) batteries. Simple to use with a selector switch to choose either 6V or 12V and an easy read LED display to show the charging progress while in use. The units feature technology to protect the battery from overcharging and excessive current; the 2.8A does this automatically while the 5.6A and 7.0A have a manual reset. For safety the unit is fitted with short circuit and overheat protection, and the vents help keep the internal fan cool. All have a robust design fitted with a built-in carry handle. Attached with insulated copper leads, battery clips and 1.1m power cable.