Draper 53489 BCI4 6V/12V Smart Charger and Battery Maintainer (4A)

Does more than just charge 6V and 12V vehicle batteries.
Ability to activate, analyse and recondition the battery in 10-steps, making it ideal for deep discharged batteries.
Can be connected to a Lead-Acid or Lithium battery for a long duration without the risk of overcharging.
Can also be used in winter temperatures as low as -20°C.
Easy to use and a cost-effective solution to keep batteries in good condition all year round.