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Water Bottle Li-Ion 18650 Battery: 14.8V 5200mAh (77Wh, 4.2A rate) with Trail-Tech Female plug

Your Price: $104.00
In Stock

Product ID # 2889
Part Number:

Quantity Discounts

5 to 20$100.88
21 to 50$98.80
51 to 100$96.72
101 or more$93.60
*Important Shipping Regulation This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...
Battery Pack             
  • Voltage: 14.8V (working)   16.8V ( peak)  11.0V ( cut-off)
  • Need battery pack with output: 13.2VDC 2A rate? Please click here to order 
  • Please make sure light bulb will accept 16.8V peak voltage (4.2V /cell). You may consider use 12.8V LiFePO4 battery pack for bike light with 14.6V peak voltage (3.65V/cell), please click here for link
Capacity       5200mAh (77Wh)
  • 1 PCB (8A) installed with the  battery pack and protects the battery from
    • Overcharge       (>12.6V)
    • Over discharge  ( < 7.5 V)
    • Over drain ( >  13 Amp)
    • Short circuits
  • One 4.2 Amp polyswitch  installed to limit  max. discharging current at 4.2A and to protect wrong polarity
Max. Discharging Rate       4.2 Amp limited by polyswitch
Dimensions (LxWxH)
  • Battery size:      5.2" x 1.6" x 1.5" 
  • Water bottle size:  3" D x 10"H
Weight        430 g (15.2 Oz)  
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  • You shall connect the battery pack to 13.2V regulator with switch (2A rate) to achieve the best service life for running HID bike light  ( click pic below to order )
  • Must use 1.5A Universal Smart Li-Ion battery charger + the connector adaptor to charge the pack.
  • Please keep your old bike lighting connector. You may need to link our wire to a special connector to make your lighting work properly , in case our universal connectors can not fit your light.
  • If you would like to use this charger in your car,  you can choose our 110W DC-AC inverter, then you can charge your RC battery everywhere.
  • Perfect for over voltage 12V Halogen bike headlight of  10 - 13W.  The burning time is about 5.4 hours. Note: due to over voltage, bulb life will be shorten!
  • Can replace any 13.2V NiMH battery pack and 14.8 V Li-Ion battery packs, Can run 30 W max. Halogen light , burn time is 2.3  hours  ( don't use this pack for > 30W halogen light, PCB will cut power off)
  • Li-Ion battery may be exploded if mis-using.  We are not responsible for any damages or losses caused by misusing (included but not limited to: mis-charging, mis-discharging, any changes of this battery pack, mis-assembling battery packs) .
  • Always charge battery with attention.  Battery pack shall be placed on a fireproof place to avoid any accident
  • Please check battery polarity before plug battery into light. 
  • For safety warning please see the link here
Pack Configuration  


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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.
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