The longest life rechargeable battery
But if you''re looking for a great lithium-ion rechargeable battery, these 1.5-volt Tenavolts have a capacity comparable to NiMH batteries—about 1,848 mAh—with a charging time of under two hours. ... respectively, these devices allowed us to measure how long each battery can run during low-drain and high-drain use. For these tests, we ran ...