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Li-ion 18650 Box Battery: 12V-13.2V (77Wh, 4A rate) with Regulator & Low Battery Alert + 1.8A Smart Charger (6.24)

Your Price: $155.95
In Stock

Product ID # 6824
Part Number:

Lead Time: 5 Business Days

Quantity Discounts

5 to 20$151.27
21 to 50$148.15
51 to 100$145.03
101 or more$140.36
Newly designed Smart Li-Ion Battery Pack in plastic case  with regulated dual voltage output at 13.2V and 12V

Important Shipping Regulation*

This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...


  • 77 Watts hours energy  ( 14.8V 5.2 Ah, High quality Sanyo/LG/Other Top Brand Korea 2600mAh 18650x8 cells inside)
  • One selectable 12V/13.2V DC-DC (4A Max) regulator

Regulated voltages

12V and 13.2V

Max. discharging current

4A limited by regulator




  • The smart battery pack is built with soft-start function, and will fit and replace all kinds of rechargeable batteries for Bike Lights, Halogen Lights or HID up to 20W
    • for Higher brightness , please choose 13.2V
    • For Energy saving, please choose 12V
  • Switch the voltage to the 12V position, and the smart Li-Ion battery pack can replace all types of 12V NiIMH battery packs with higher energy and much less weight, such as:
    • Portable video light battery pack s
    • Portable radio batteries
    • On-the-go battery pack
    • External battery bank to run most of Laptop computer if connect cable with Laptop Universal connector
  • One 1.8A (UL/CE listed) Smart Li-Ion battery charger  is included for recharging the battery pack in around 4.3 hours.
  • Low battery alert function built in. If battery voltage drops below 11V, a tone sounds for 10 seconds to remind you to recharge the battery.

 Specifications for Li-Ion  Battery Pack

 Specifications for Smart Charger

  • High quality Sanyo/LG/Other Top Brand Korea 2600mAh 18650x8 cells inside
  • One PCB(8A limited)  inside  to protect battery pack from over-charge and over-discharge
  • One 7 Amp polyswitch  installed 
  • Voltage: selectable at 13.2V or 12V  
  • Water-Proof power switch is installed outside box
  • Blue LED indicates power on   
  • Capacity:         77 Wh
  • Max. discharging current: 4A limited by regulator
  • Dimension: 5"(127mm) L x 3.1"(80mm) W x 1.7"(43mm) H
  • Weight: 1.0 lb 8 Oz (678 grams)       

Note: How to select battery pack voltage?

  • Power switch in the center position is power off
  • Power switch to the right, battery output is 13.2V
  • Power switch to left,  Output is 12V
  • Battery pack may be charged when power switch is in any position


  • Voltage: 100 -240VAC
  • AC power plug type: USA 
  • Current:0.4VAC
  • Max. Power: 48W
  • Rating frequency:50/60Hz
  • Output Voltage:16.8VDC 1.8A
  • Dimension (LxWxH): 120mm(4.7") x 60mm(2.4") x 338mm(1.5")
  • Weight: 8.6Oz (244grams)



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