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Lithium Battery: 3.6V 4250mAh (15.3Wh, 8A rate, NCR20700B)

Your Price: $21.95
In Stock

Product ID # 1359
Part Number:

Available to order with lead time 1 week to build

Quantity Discounts

5 to 20$21.29
21 to 50$20.85
51 to 100$20.41
101 or more$19.75
Important Shipping Regulation This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...
  • Lithium 3.6V 4250mAh battery is build by 1pc 20700 size rechargeable cell
  • Wrapped by white thin PVC
Voltage Nominal Voltage: 3.6V; Charge Cut off Voltage: 4.2V; Discharge Cut off Voltage:  2.5V
Capacity 4250 mAh
  • 1x PCB(8A) installed with the battery pack and protects the battery from
    • Overcharge / Overdischarge / Over drain / Short circuits
  • No polyswitch
Terminal 6" 18 AWG open end wire 
Charge Current 2A
Discharging Rate ≤8 Amp limited by PCB
Dimensions (LxDia)

72mm  x  24 mm

Weight 4 oz  
Temperature Charge: 10 to +45ºC
Discharge: -20 to +60ºC
Storage: -20 to + 50ºC
Related Products

 You can use our 1.8A smart Li-Ion battery charger  ( 2.5-3 hrs charge time)

  • Lithium battery may explode if misused.  Must follow above battery's specification. We are not responsible for any damages or losses caused by misuse.
  • Do not disassemble the battery.
  • Always charge battery with attention.  Battery pack should be placed in a fireproof place to avoid any accidents.
  • Please check battery polarity before charge or connect to device.
  • For safety warning please see the link here
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warning

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Product Reviews

(2 Ratings, 2 Reviews) Average Rating:
AMAZING flashlight
(Unknown) 12/14/2007 9:13 PM
Well, I am a hardcore airsofter and I play both indoor and outdoor. On both of my top of the line guns, i use flashlights for both night and day combat. Most people do not realize that a quick flash of a powerful flashlight can temporarily blind an opponent and give you an upper hand for a few seconds to put a few trigger pulls of BBs into your enemy. During battle, it is key that your flashlight be ready for use and strong enough to give you that tactical advantage. I mainly play indoors, CQB battles, where the opponent is usually about 20 feet in front of you. To give me the usual advantage, I just turn on my light and fire into the enemy, who has no time to react. These batteries also gave me a small increase in intensity compared to the ones i bought elsewhere. This amazing product, the Aluminum Xenon Superbright 6V Flashlight with Holster and Two CR123A (3.0V 1300mAh) Lithum Batteries, is so bright, it hurts when you concentrate the beam of light. Every time I talk to my opponent after a match, they always remark who was that person who used that killer flashlight¦it felt like I died I saw the light. For all airsofters out there, this flashlight is sick. Do not waste hundreds on a surefire flashlight. This one is bright enough for all purposes. i am very glad to have finally found a store that has all my airsofting necessities and i will look forward to dealing with you in the future.
"Police Flashlight"
zanetran (Unknown) 10/16/2006 7:26 PM
The flashlight came in a copper color which is fine by me. Looked great, feels nice. Only problem was that with the batteries in place it did not light up. Closer inspection revealed that the batteries were dead. which pissed me off a few, but i went out and got some nice dirt cheap batteries and it worked. the Shine is intense this flashlight can light up my entire house. And are small enough to fit my m15a4. Only complaint is i wished the batteries they provided worked.
What to consider when designing Lithium Batteries?
Bluetooth Technology for Lithium-ion/LiFePO4 Batteries
UN 38.3 Safety Test

We own a national standard UN38.3 testing lab. We can provide UN38.3 test service to our customer.

If you want to set up your own lab, we also provide UN38.3 & IEC62133 equipments and onsite training. Email us for the quote and lead time.
Lithium Battery Shipping Regulation
Recommendations on How to get ≤30% Rated Capacity for Shipping
Thermal Abuse Test for IEC62133
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