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These are oddball batteries for eBay headlamps. They do indeed recharge within a couple of hours, but do NOT expect use-ability beyond 30 or 40 minutes on high beam....the headlamp tapers to un-usable beyond this point. Keep them all charged, and cycle them through for heavy night activity.
Verified purchase: Yes | Condition: New
Bought these batteries for a led head lamp light that comes with 1-3800mAh li-ion rechargeable battery that will last approximately 5 times as long as one of these batteries. As a matter of fact, I think if I had 2 of the original 3800 batteries, they would probably outlast all 8 of these. I wouldn’t recommend these batteries to anyone unless you don’t mind carrying a pocket full of spare batteries whenever you need to use your headlight. Cheap price but not the product that’s advertised!
Verified purchase: Yes | Condition: New
I doubt this really has 9800maH. It does not appear to be protected from over charge and if charging isn't done by an intelligent charger or under close super vision there ls a potential fire hazard!
Verified purchase: Yes | Condition: New
I suspect the 9800mAh rating is inflated. These batteries don't last as long as the 4000mAh batteries I bought 2+ years ago! Otherwise the charged well and work for an hour or so!
Verified purchase: Yes | Condition: New
None would hold a charge for no longer then 30 minutes when used for vaping @ 8 watts - 2.23ohms. Pretty much garbage. Shipping was 5 stars but product isn't worth my time.
Verified purchase: Yes | Condition: New
Batteries are advertised as 9800mAh. I weighed one and it weighed .8 oz. A Nitecore 3500mAh battery weighs 1.7 oz. and is 3/16 of an inch longer. They can not possibly be 9800mAh battery. they are inexpensive just know what you are getting.
Verified purchase: Yes | Condition: New
I had an old battery powered drill that had a NiCd battery pack. These batteries fit nicely into the pack. After assmbly with new batteries I can drive just a few screws and the pack is drained. I have not tested a battery, but they do not deliver 9800ma for an hour... not close.
Verified purchase: Yes | Condition: New
Got the product very fast and they all were able to take a charge and work. So far no defects or problems. Seems to work just as well as the name brand batteries.
Verified purchase: Yes | Condition: New
Buying these batteries I knew they would be no where near the advertised capacity. But now that I have them I can see how awful they actually are. I measured two of the eight I ordered at roughly 800mAh each.
Verified purchase: Yes | Condition: New
I am very satisfied with the 18650 battery's . The flashlight has a very bright light. The life of the battery is quite long between re-charging.
Verified purchase: Yes | Condition: New