Modem 18650 4-cell Battery Pack, 4400mAh

  • Sale
  • Regular price $2.00
  • Will be in stock after
Shipping calculated at checkout.

Shipping to 48 USA states only  on UPS Ground  No international orders including HI,GU,PR

These are Arris BPB044S 8.4vdc 4400mAh Modem Battery Packs.  They typically contain 4 of the following cells,





Modem packs are great for harvesting 18650 cells as they typically have very low cycles,  and sometimes they even have zero cycles. To harvest the cells you have to crack packs open and extract the cells,  you'll have to cut and clean the Nickel interconnects using snips.

Once the Cells are out and clean you will have to test them using a charger like this.

Typical Capacity: 4400mAh
Nominal Capcity: 4300mAh
Diameter: 18mm
Length: 65mm
Voltage nominal: 3.6V
Charge voltage cut-off: 4.2V
Discharging cut-off: 2.5V

The pack has 2x 2200mAh cells in parallel, so the pack is 4400mAh.