SPIM08HP High Power Lithium-Ion 10S Pack

CITIC Guoan MGL Power Technology Co., Ltd produces the SPIM08HP pouch cells that are being recycled and sold by alarm hookup on EBay.

Cell Specs

  • Model: SPIM08HP
  • Chemistry: Lithium-ion Manganese
  • Dimensions: 8mm * 140mm * 190mm
  • Nominal voltage: 3.6V
  • Charge Voltage: 4.2V
  • Cutoff Voltage: 2.5V
  • Amp Hours: 8Ah
  • Max Current: 200 Amps
  • Max Charge Rate: 15C

We drill small #4 size holes into the terminals, and bolt together a 10S string using the shortest #4 screws we can find. At each screw, we attach an eyelet connected to a balance wire.

The joined cell terminal end is then encased in a section of red PEX tubing (can be found in plumbing section of Lowes/Home Depot).

BMS is attached, and entire pack is housed in a $5-$7 plastic ammo can purchased from Harbor Freight. We’ve made versions of this pack with regular post terminals and XT60 connectors.

Pack Specs

  • Configuration: 10S (1P)
  • Nominal Voltage: 36V
  • Capacity: 8Ah (288Wh)

We charge with a DPS5005 set to 42V / 1.0A to preserve cell life. The pack may be charged at 15C which is 15 * 8Ah = 120 amps. Obviously, picking the C-rate at which to charge your pack depends on both the cell’s listed C rate, and your BMS unit’s amp rating.

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