Good upgrade
"I didn't even know an 18650 could hold this capacity! Bought this to replace the one that came in my Fenix HM75R headlamp."
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More Information
Capacity: 4000mAh
Voltage: 3.6V
Charging Current: 2A recommended, 4A maximum
Max Output Current: 7A
Weight: 1.94 ounces (55g)
Size: Length: 2.72" (69.2mm) Diameter: 0.74" (18.75mm)
Warranty Period: 12 month from date of purchase
Compatible with all lights using an 18650 size battery.
Overall rating: 4.76 / 5 from 25 reviews.
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Reviews
These are wonderfully powerful batteries,
"These are wonderfully powerful batteries, and it's good for me to know that I can just pop these two into my flashlight, and then charge the two that I've taken out, while the two fresh batteries are in the flashlight. This will of course mean that I'll always have fresh, full batteries ready to go, the moment I need them. This was a good investment indeed. Thank you Fenix for making wonder"
We just used these batteries
"We just used these batteries to do the 6 and a half day "Magnificent" adventure race in New Zealand. They lasted way longer than I was expecting. I only had to switch out batteries one time during the whole race."
Great longer power band at
"Great longer power band at a reasonable price."
High capacity battery
"I always opt for the largest capacity battery available, to minimize the likelihood that the flashlight will stop working before I'm done using it. I use this battery in an LD30, and the battery lasted so long I thought the battery capacity light had stopped working. I'm very happy with this battery."
Shipment not received
"Could you please check with carrier, as I have never received it("
Great Product
"I needed a replacement battery for my older Fenix flashlight, does the job and lasts a long time."
Longer run time
"I was happy to see this battery can work with all 18650 lights unlike the other one (U model I think) so double check and make sure you get the correct one."
Have only used a few
"Have only used a few times since receiving. Seems good so far"
New 4000mh 18650 battery
"Runs longer than 3500mh for sure. When running in TK35R longer run times for max tactical use (approximately first half of battery life)as used for defense purposes etc."