6 Volt 6Ah Lithium Iron Phosphate Lantern Battery, 2000 Cycles Rechargeable LiFePO4 Battery for 4R25 Lantern(Spring S2 Terminals)

Excellent battery. Worked great.

Just got it, charged OK, blue light came on. Will see how long the flash light will last without .

This Nermak 6 volt 6Ah LiFePO4 battery seems like a solid upgrade for my lantern. The fact that it's lithium iron phosphate (LiFePO4) is a big plus for longevity, with that 2000 cycle claim suggesting it'll last a good long while before needing a replacement. It's the same dimensions as the existing alkaline version that is about to die. This lithium battery's price point is in the same ball park as that non-rechargeable alkaline. Recharging this battery is pretty straightforward as it uses a cellphone charger. Overall, I feel that for anyone looking for a reliable, rechargeable battery that's built to last in their lantern, this one appears to be worth considering.

The cells charged quickly, but did not hold a charge for long, even with no load. I have it in service with a solar charger, and the battery will neither charge over 10% nor hold even that charge without a load. I should have stuck with an old-school lantern battery.

Just small enough to squeeze into my deer feeder