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About this product
Product Identifiers
BrandEfest
MPNIMR10440
eBay Product ID (ePID)1451138310
Product Key Features
Chemical CompositionIMR
Voltage3.7 V
Ratings and Reviews
Most relevant reviews
- May 09, 2018
Very good batteries
Really not many manufacturers out there making these 10440 batteries so not a lot of choices but these do the job nicely. Just don't drain them all the way down or you kill them because you can't get them to take a charge again not the batteries fault if operator error occurs so don't let it or you will need to buy some more soon. I really like the tiny 10440 edc lights and I have several of them the only downside to their tiny size is short runtime due to tiny battery. Sometimes I carry an extra fully charged 🔋 to make it through the day.
Verified purchase: YesCondition: New
- Dec 06, 2017
A little powerhouse!
These Efest imr 10440 batteries have the same height of regular AAA batteries and fit all of my flashlights perfectly. They charge fast and deliver constant power until they reach the drop off point, usually indicated by my flashlight dimming. I can get over an hour of regular use on the medium light output when I'm out walking. A great little battery for my needs!Verified purchase: YesCondition: New
- Feb 20, 2018
a great 10440 battery
unlike other 10440 batteries I have purchased in the past the EFEST IMR batteries have an actual true 350 mAh capacity, light, cool running and quick charging..I use them in my ACEBEAM UC15 FLASHLIGHT, 2 BATTERIES SIDE BY SIDE OUTPUTTING OUT 1,000 LUMENS, THESE HIGH DRAIN BATTERIES ARE GREAT,HIGHLY RECOMENDED ....Verified purchase: YesCondition: New
- Apr 02, 2016
Great batteries!
According to my Opus 3400, these both tested at about 340mah. I bought these good ones for my EDC flashlights, both pocket and keychain lights. Flashlights around the apartment get the black TrustFire/UltraFire batteries, for better value (hopefully). So far, it's the black xFire's that test out decently.Verified purchase: YesCondition: New
- Apr 22, 2019
Get you a pair!
Excellent batteries and they last!! Long lasting life had them a month and still haven't had to recharge using them in a flashlightVerified purchase: YesCondition: New
- Mar 14, 2017
Efest 10440 battery
I consider this the best lithium ion battery on the market. Much safer chemistry than other batteries of this type. Holds a charge longer and works best in flashlights because it is a high drain battery.Verified purchase: YesCondition: New
- May 05, 2021
Great in Olight I3T EOS
Bought a pair of these to try in my I3T EOS, they work perfectly. In low mode you can have the light on for as long as you need it, I had it on for an hour and it hadn't dimmed. In high mode this tiny light is very bright, it's putting out about 400 lumens but don't run it for longer than 30 seconds though, you will overheat the LED. These batteries and this light work well together.Verified purchase: YesCondition: New
- Mar 27, 2018
working well so far
mutliple recharges and lots of use have proven these to be a worthwhile investment. my pocket torch does great with these. long run time and consistent output. thanks!Verified purchase: YesCondition: New
- Sep 21, 2021
Great battery’s.
I tested capacity and resistance. Both check out they are originals. I run those in my Lumintop GT Nano. One of my favorite mini flashlights of all time.Verified purchase: YesCondition: New
- Apr 18, 2019
Battery
Item received as orderedVerified purchase: YesCondition: New
