I've owned these for 8 months and they save so much money. They are the best capacity 9 Volt Rechargeable Lithium-ion Batteries I've tested. These have about double the capacity of n... read more »
Just one 9V battery could cost $5 or more at a convenience store around my area. For just the rough cost of 5 of them you get 3 rechargeable batteries with a charger. If you use each one of them and r... read more »
According to the instructions this only works with the batteries included. It comes with an USB cord but no plug and definately do not plug it into a device to charge like a laptop. I have them chargi... read more »
Seem to be well built and have over charge technology because they dont get hot at all. Will report again after some heavy use but for now I give it an A read more »
#RankBoosterReview ii. #Sponsored iii. #Keenstone 9V 800mAh Rechargeable Li-ion Battery with 3-Slot Charger for TENS Smoke Detector Multimeter Alarm System etc(3-Pack)
https://www.amazon.com/Keenst... read more »
I hate replacing my 9v batteries in our fire alarms since 9v cost a arm and a leg any more. This works so well and pays for it self the first charge. I would strongly recommend this to anyone that use... read more »
Very nice and charged quickly. I use these in my guitars and music equipment and they work perfectly. with 3 there is always a back up ready to go!
#Keenstone, #rankbooster... read more »
These 9v rechargeable batteries are great they work great easy to use and recharge the charger is nice and simple to use highly recommended #RankBoosterReview read more »
These rechargeable 9 volt batteries work great the charger works great everything that comes with them is nice and simple highly recommended #RankBoosterReview read more »
Batteries could be expensive! I have seen 9V batteries priced at $3 or more each. However, this battery charger package includes 3 9V rechargeable batteries! With just using each battery 3 times you r... read more »
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