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Efest 3540 RCR123A / 16340 850mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Boxed

Efest 3540 RCR123A / 16340 850mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Boxed
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Efest 3540 RCR123A / 16340 850mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Boxed
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| Reg. Price $7.50
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100+$4.85 ea.

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Efest 16340- Button Top

The Efest 16340 battery is both a reliable and high quality power source. The button top terminal allows these batteries to be used in many different devices and will keep them running for a long time. Its 850 mAh capacity makes it one of the longest lasting 16340 batteries available. If you're looking for a quality and reliable power source, the Efest 16340 battery is the right choice for you.

  • Chemistry: Li-Ion
  • Voltage: 3.7V
  • Battery size: 16340
  • Capacity: 850mAh
  • Estimated charge cycles: 500
  • Diameter: 0.65" (16.63mm)
  • Height: 1.33" (33.98mm)
  • Weight: 0.88 oz (25g)
  • Button Top
  • Protected Cell
Battery Size:16340
Battery Capacity (mAh):850
Battery Chemistry:Li-Ion
Battery Voltage:3.6 / 3.7
Battery Terminal Type:Button Top
Battery Shelf Life:3 Years
Product Certifications:CE, RoHS
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:0.882oz
Product Dimensions:1.338" (L) x 0.655" (Diameter)
Country of Origin:CN
Associated Battery Sizes:16340, CR123A, R123, RCR123, RCR123A

Efest doesn't provide public datasheets.

5 Reviews
20% (1)
20% (1)
0% (0)
20% (1)
40% (2)
40% Recommend this product (2 of 5 responses)
By Darryl
Hayward ca
February 9, 2018
Out of spec.
Batteries are too long, measured at 1.425 inches long, manufacturer claimed 1.338. Poor manufacturing.
By Sean
Los Angeles, CA
December 4, 2016
Powerful, protected CR123A at a good price
Great fit in all my flashlights. A high quality protected battery with long lifespan. Works as advertised...
ProsQuality, protection, long lasting and rechargeable.
ConsNone so far.
By Scott
January 24, 2015
Electrically OK, but won't fit due to poor manufacturing practice.
Ordered two batteries, one fits in my light fine but the other does not. Upon closer inspection, the plate on the negative side is skewed from the rest of the battery. When the battery was assembled, their fixture failed to keep the plate in the proper position when it was (I assume) soldered on.
ProsElectrically, the other battery I received does what it should do. The low voltage cutoff works as designed, so plan accordingly as you will suddenly have no light at some point.
By Bryan
January 9, 2015
Too Long
I bought this for an Olight S10R and it's too long. The end cap will not screw on all the way (no electrical contact) when using this battery. It wouldn't work in my JetBeam RRT01 either.
By Eagle3x8
Palo Alto, CA.
November 27, 2014
Size different from other 16340's
Capacity is good. Longer than other 16340's to achieve the capacity. Will not fit all devices.
ConsSize longer.
There are no questions or answers for this item.

Efest 3540 RCR123A / 16340 850mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Boxed

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