(8- Pack) Shockli AA 3.2 Volts LiFePo4 650mAh Rechargeable Battery, Lithium Iron Phosphate 3.2V Solar Batteries - Ideal for Solar Garden Light

These LiFePO4 (Lithium Iron Phosphate) AA size batteries are MUCH safer than standard Lithium Ion batteries, and are becoming my go to rechargeable battery for our boat. These three are cost effective, and charge rapidly. Highly recommend!

I measured the capacity of these Shockli cells and actually got rated 650ma-h capacity! I'm impressed given the typical over-rated stuff found here on Amazon. (Amazon, review your ads! There are no 18650 Li-Ion cells above 3300-3600ma-h capacity!)

These were impossible to find in a store! I must've bought 3 different sizes and returned them because they didn't fit my lights! After reading the Q&A section I knew I found the right product. They were delivered super fast, too!

Hadn’t heard of this particular brand but I’m pretty happy with their performance. I use these for some solar powered post lamps and the performance has been great. I’m satisfied with the results and will be replacing the other older batteries in the lamps.

The driver who delivered this item took the time to put the box in a non visual area. I've had boxes delivered just thrown on the porch. This driver not only made sure it was safe but delivered a great product from this company. Kudos to everyone.

These batteries didn't last even half the night, and now they won't recharge at all. I was impressed with the positive reviews so I bought 8 of them. Now I'm sorry I did. A waste of money.

Don't make the mistake I did and get excited about a AA LiFEPO4 option for all your devices around the house. This item runs 3.2V-3.6V which is triple the voltage of a normal AA. You will pop your electronics if you use these like regular AA batteries. With that said, I did test these batteries and they seem to max on charge then drop to 88% capacity or so after 24 hours in storage. After that they seem to slowly drain a few percentage points day after day until settling in at 50-60% capacity according to my charger test reads.Some positives: These work great in the dual fuel Streamlight Pro-Tac 1L-1AA. Full charge to full drain was 1 hour on high beam. You get the benefits of 3.3V power even with diminished capacity. I find that fine for emergency purposes.If you have a three AA device you could get creative and use one of these batteries in lieu of three AA. With diminished capacity of course. I put one in my three AA chargeable radio and bridged the contacts.

All batteries were received fully charged and functional. They were the type and dimensions as specified.Longevity cannot yet be determined.