Salicru SPS 500 ONE UK 500 VA (662AF000007)

This battery combiner kit is designed to add a 2nd or 3rd battery system to your car, boat or motorhome, or wherever you want.It uses the simplest and most advanced technology to keep your batteries c more→harged by the engine´s electrical system, but isolates the starter battery when charging is complete, so you are never stranded.

PowerWalker MHB MS9-6 Sealed Lead Acid (VRLA) 6 V 9 Ah

Bs Input Cord For 10A Ups