CamdenBoss has launched a range of maintenance-free gel VRLA (valve-regulated lead-acid) batteries designed specifically for use in solar-panel and similar applications where intermittent charging routines are the norm. The new BES series batteries are spill- and leak-proof and feature a gelled electrolyte with valve regulation to do away with the need for addition of electrolyte and ensure maintenance-free operation throughout design life. Gel technology ensures better recovery from deep discharge. The batteries also feature low self-discharge to minimise energy wastage. They feature phosphoric acid to improve battery-charging capabilities under poor or sporadic charging routines, such as those provided by solar panels. This makes them a suitable choice where such panels are used, such as in signage applications, including road signs, signalling, remote communications and repeater stations, building installations, hybrid power supplies, and street and garden lighting. The batteries are available with 18, 26, 33, 44, 110 and 230Ah capacities.