AccuPower9 Volt 300 mAh Rechargeable NiMH Battery PP3

These don't seem to hold a charge well while being stored, but work fine when pulling them off the charger a day or two before you need them. They also don't seem to last quite as long as standard 9v batteries purchased from the big name brands in my wireless gear.

These haven't lasted nearly as long as I expected. They do not fully charge anymore so are next to useless.

The charges doesn't last as long as it supposed to

I bought 4 of these to run wireless mics. I've never tested them past 4 hours but I have recharged them at least 50 times. They have saved me tons of $$. I bought these to replace 4 of the "blue ones" that came with my multi charger. Those only lasted 3 hours out of 4 hour karaoke show. These are well worth the money.

Says "Made In China",it is working fine and reliable, do not know how long will it perform the same. Feels kinda cheap in hand, but have no complaint on that.

Slow charge.

Disappointed! I have been using Enercell 170 mAh batteries for years but chose to try these supposed 300 mAh batteries to see if I could get more time between charges. Instead I initially got about half as much time as the Enercells and now at 6 months old they will no longer take a charge. I'll definitely go back to the Enercell!

this battery rocks. it holds more power. i use it for my motion detector at night (gives me time to lock and load if there is an intruder), and the volume has increased considerably since i replaced the old disposable one with this NiMH battery.