The Switronix 4x XP-L90A Gold-Mount Batteries & Two-Position Charger Kit
combines four 14.8V, 98Wh batteries with a two-battery, 90-240V desktop charger.
The batteries each feature a 2-pin P-Tap output, information storage, and 4-stage power gauge readout. The charger can simultaneously charge two batteries and provide AC power to 12V equipment. It supports lithium-ion, NiCD, and NiMH batteries at the same time.