Takes awhile to reach full charge but lasts a long time. Will report back after 500 recharges.

In my past search for 10,000 mAh battery cells I have found other battery cells are not always the capacity advertised. I am pleased to say these cells are exactly as advertised. You can see in the complete discharge current profile (attached image) for the Tenergy 10105 battery cell, discharged through a 1.13662 ohm 30W resistor over 13h45m Start voltage: 1.421 V End voltage: 0.947 V Measured capacity: 10,081 mAh

Very happy so far , bought for a emergency radio seem to have good power and recovery.

The batteries charge well, my tester says they are fully charged. But won't work in deer sensor, which is what I bought them for. Regular alkline batteries work fine but I wanted to be less wasteful and more buget minded.So I have costly batteries that are just sitting here. If you only want them for a flashlight they are ok but seem to run down fast, in a couple of hours of continous use. I would not recommend them.

My home flashlights now all work,..all the time thanks to these rechargeable long lasting D cells. My flashlight are no longer a place to keep dead D size batteries . These batteries are like a hard boiled egg,....Unbeatable ;-))

Had these for three months now in three Maglite LED flashlights. All three are used almost daily and I haven't needed to charge them since the initial zap.

I use this NiMh battery in my glow fuel ignitor stick. I have many nitro RC cars and airplanes and the battery really holds a charge.I haven't had to charge it yet since my first initial charge. I only use Tenergy batteries. I use there Li-Po packs in my Quadcopters and they outlasted any other companies including pulse batteries. Great quality. You won't be dissatisfied.

The writing is still not on the wall for these batteries. I purchased them mainly for a camping lattern. Used them once in the lattern and they appear to work very well. I'm guessing only time will tell to see whether they were a wise investment.