TecMate Optimate Lithium 4S Quad Bank Multiple Motoryccle Quad Battery Charger

OptiMate Lithium 0.8A x 4 is totally automatic and fully protected against user errors. There are no switches. IDEAL FOR: 4x Lithium (LiFePO4) 12.8/13.2V batteries from 1 – 10Ah. INCLUDED: 4x Weatherproof battery lead and 4x battery clip set.

eBay