Got one for the fire alarm and one for a RC car and just love it! With as long as it lasts in the RC car, I'm certain I won't need to charge the one in the fire alarm for a very long time! I love that I can just set it in the universal charger and it powers right back up fairly quick! I always seemed to forget the 9v when I'd go to the store. No more!
Verified purchase: Yes | Condition: New
I wrote a review for a different brand of 9V with the same complaint. These rechargeable's just don't work for what I use them for. I do a lot of metal detecting. One unit uses 9V and one uses AA. I can get several days of use from the AA but if I get a full from the 9V I'm lucky. Then it takes nearly 24 hours to recharge the 9V. If I use a standard throw away 9V in the one unit I can get nearly a week's worth of use from them. All in all these batteries were a waste of money for me.
Verified purchase: Yes | Condition: New
hi, I bought this product to replace the batteries in all my smoke alarms in my home, we all need to be safe and protect the ones we care about as well as property The best thing about these is that they are rechargeable and the price of replacing 9 volts can be expensive now i have years of saving money and keeping home and family safe. The only drawback has been they seem a little hard to charge i mean it usually takes 6 hours or more on these 9 volts compared to an hour with AA and AAAs and even D cells. Other than that they are great. I would recommend these batteries to anyone who wants to save money and keep family,friends, and property safe as well as keeping non rechargeables out of our garbage dumps, which when you add up how many goes into the garbage is a very large number of alkaline trash that will takes years to turn to rust and the chemicals will always be a toxin that can pollute our envirenmentRead full review
Verified purchase: Yes | Condition: New
I keep buying this exact battery because I rotate them in and out of use with my acoustic-electric guitars. Once charged they seem to last for many hours. The recharge quickly and I've had ZERO problems with them. They are my "go to" batteries for musical instruments.
Verified purchase: Yes | Condition: New
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