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Custom Li-Ion 18650 Battery Pack: 10.96V 2850mAh (31Wh, 0.5A rate, 3S/S, INR18650-29E) with 12V Regulator

CU-J818 Front View
CU-J818 Front ViewCU-J818 Back ViewCU-J818-V2: Detached Regulator
Your Price: From $80.30 to $85.80
Lead Time: 5 Business Days

Product Options

Update on 8/11/2021
  • Previous cell discontinued, updated to INR18650-29E cell.
Important Shipping Regulation This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...
  • Custom 10.95 V Li-Ion rechargeable battery made of 3pcs Samsung INR18650-29E 2850mAh cells
  • The battery pack is wrapped by black thin PVC
Voltage        Nominal: 10.95V; Maximum Charge Voltage: 12.6V; Discharge Cut off: 7.5V, Output Terminal: 12V
Capacity        2600 mAh  ( 28.86 wh)
  • 1x  PCB (4A) installed with the  battery pack and protects the battery from
    • Overcharge / Overdischarge / Over drain / Short circuits
  • 1x 1.2Amp polyswitch
  • 1x 12V regulator
  • Charge: 6" 20AWG open end wire installed on the battery pack
  • Discharge: 6" 24AWG open end wire from 12V Regulator
  • CU-J818: 12V Regulator locate on top of pack
  • CU-J818-V2: 12V Regulator detached from the pack, 10cm wire between regulator and pack.

Note: The 12V regulator has 40mA power consumption. Suggest to order battery with detached regulator. Plug the regulator when using the battery, unplug the regulator when not using the battery. Otherwise, the power will be used up very soon.

When plug the regulator to the battery, Vout pin from the regulator to red wire of 4 pin connector on the battery
Max. Discharge Current 0.5Amp limited by 12V Regulator
Dimensions (LxWxH)

CU-J818: 73mm(2.87") x 56mm(2.2") x 28mm(1.1") 
CU-J818-V2: 73mm(2.87") x 56mm(2.2") x 18mm(0.7")

Weight 184g  ( 6.5Oz ) 
  • Li-Ion battery may explode if misused.  We are not responsible for any damages or losses caused by misuse (including 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 in a fireproof place to avoid any accidents.
  • Please check battery polarity before plugging battery into device or charger
  • For safety warning please see the link here 
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

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