Powerbox Systems PowerPak 2.5X2 PRO

Like all PowerBox Battery types, the PRO version features a fully integrated charge circuit and balancer unit. To charge these packs all you need is to connect the integral charge socket to a 110V / 220V mains PSU or a 12V car adapter. Battery voltage, battery current and charge time are constantly monitored by the integral electronics, completely eliminating the possibility of operating errors. The internal voltage monitor circuit indicates the battery's state of charge using the integral LED, or an external plug-in LED.