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The funkawa 16650 Protected Rechargeable Battery (1800mAh, 3.7V) offers a robust 500-cycle lifespan with built-in PCB safety features to prevent overcharge, discharge, and current surges. Designed to fit popular flashlight models, it comes with a smart USB charger that supports 1-2 batteries simultaneously, automatically switching to trickle charge for optimal battery health. This rechargeable alternative to CR123 batteries delivers reliable, eco-conscious power for professionals who demand performance and safety.
| ASIN | B09S3R1N2H |
| Battery Capacity | 1800 Milliampere Hour (mAh) |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 80 Grams |
| Best Sellers Rank | #37,150 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #167 in Cell Phone Replacement Batteries |
| Brand | funkawa |
| Customer Reviews | 4.2 out of 5 stars 82 Reviews |
| Item Dimensions | 4.33 x 3.94 x 1.57 inches |
| Item Weight | 0.12 Kilograms |
| Manufacturer | shockli |
| Number of Batteries | 2 Lithium Ion batteries required. (included) |
| Reusability | Rechargeable |
| Voltage | 3.7 Volts |
R**V
Longevity and proper replacement for 123A
Batteries last pretty long, about 1.5h with my high power surefire m4. Great replacement for the expensive 123A batteries!
J**N
Great replacement for non rechargables
Has worked well in my night vision rifle scope, and now can avoid buying batteries every few months.
C**Z
Easy to work with
They work and hold charges well
T**.
UPDATED
Charged the batteries. 1 month later. Tried to use in flashlight and they had lost all charge. Update the problem with batteries was more of a streamlight flashlight problem. 2 of my 3 flashlights doesn't work well with 16650 batteries
M**R
Not worth the money
Batteries do not work as should. They say fully charged but barely work.
M**H
Rechargeable
Love the fact that I am no longer throwing away worn out batteries from my flashlights any more. Now I just charge it up and use it without any worries. Then after usage, if over an hour of light I just throw it back on the charger and I am ready for another night.
B**.
Replaces 2 123 batteries
Nice little setup. You get 2 batteries so you can rotate them and always have power. These will pay for them selves after about 3 recharges. hard to beat. I would definitely buy again.
R**T
Works well
Had it for a while no and it hasn’t blown up yet so I’d say it works.
Trustpilot
3 days ago
4 days ago