KBT 3.7V 2600mAh Lithium Button Top Flashlight Batteries (4pack) - Unprotected

If you want protected batteries (71 mm length), buy the  KBT 2600mAh with PCB  batteries in the blue sleeve. These here are 65 mm length and are unprotected (they don't have the additional protection circuit in the bottom of the battery). The product description is not clear on this, unless you convert the length shown in one of the graphics from 2.58 inches to 65 mm. I did not pick up on this before ordering. Otherwise they seem fine. Ordered a four-pack. All measured the same voltage out of the box, 3.907±0.003 volts, which is close to full charge. Now to see how they behave over time, if the house doesn't burn down...

It is difficult to rate anything as far as durability and bang-for-the-buck when you have only had it for a short time. These are no exception. As stated above, everything is good for now. Check back in December 2023.

These batteries have been way better than previous batteries I purchased, they hold their charge longer and recharge with no problems. Will get 4 more . I work nights and use a flashlight to see out in our bus yard , they last for hours , on & off use . Very pleased .

Instead of utilizing my battery charger l just installed two additional rechargeable batteries into my solar panel’s battery compartment (total of 5). Florida’s sunshine charged my batteries from 31% to 100% in about two days. Say that to FP&L.

Bought so I’d have an extra set of batteries and a charger for my new wireless camera Doorbell. Perfect for what I needed!

Vienen en un estuche ordenadas, muy recomendadas.

Out of 6 batteries 3 are still charging and working great the other 3 are junk they worked in my camera for a month first time they had to be charged they never worked again.

I tested these in my ISDT Q6 Lite. I put two batteries in series and charged them at 0.5A and discharged them at 0.5A. I did it 3 times and get around 2800mAh. I checked the other two and got 2400mAh. I'm guessing they hold a little less at a higher current but I try and baby my batteries. These one seem better than SO much of the junky Li-Ion batteries I've tested from Amazon. I like the fact that they claim 2600mAh which is realistic for this size.It also came with 2 charges, I didn't see it in the description? Maybe I just missed it.