We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two rectangular 12V 7Ah LiFePO4 batteries in blue plastic casings with F2 terminals

BatteryJack inc.

BatteryJack inc. Banshee 2-Pack 12V 7Ah LiFePO4 Standard Battery

SKU CH-GJZX-4J6VG

Two-pack of 12.8 V 7 Ah LiFePO4 batteries with built-in BMS, 3000-plus cycles and 89.6 Wh each

  • Battery Pack2-pack
  • Battery TypeLithium
  • Up to 3000 charge cycles for long service life
  • Weighs 2.09 lbs, only 60 % of comparable lead-acid weight
  • Delivers twice the power of equivalent SLA batteries
  • Compact 5.94 × 2.56 × 3.94 in size fits tight spaces
  • Built-in BMS protects cells during charge and discharge

Compact 12V 7Ah LiFePO4 Pair

This two-pack supplies 12.8 V nominal voltage and 7 Ah capacity per unit, delivering 89.6 Wh of energy each. At 0.95 kg and 151 × 65 × 100 mm they suit portable power, solar lighting, fish finders, robotics and alarm systems where weight and cycle life matter. The built-in BMS protects against over-charge, over-discharge and short circuit.

Series and Parallel Limits

Up to four batteries may be connected in series to reach higher voltages or in parallel to increase capacity, but no more than four in either configuration. F2 terminals accept standard crimp connectors; exceeding the 4-unit limit voids the cycle-life rating and can trigger BMS lock-out. The chemistry tolerates extreme temperatures better than lead-acid equivalents.

3000-Cycle Headroom

At 1 C rate and 100 % depth of discharge the cells retain usable capacity for 3000-plus cycles, roughly five times the lifespan of comparable SLA packs. Continuous loads near the 7 Ah rating are handled comfortably; sustained draws above that level will reduce cycle count and may trip the internal protection. The pack is not suited for applications requiring more than four units in series or parallel.

Highlights

  • Up to 3000 charge cycles for long service life
  • Weighs 2.09 lbs, only 60 % of comparable lead-acid weight
  • Delivers twice the power of equivalent SLA batteries
  • Compact 5.94 × 2.56 × 3.94 in size fits tight spaces
  • Built-in BMS protects cells during charge and discharge

Specifications

Battery Pack2-pack
Battery TypeLithium

Questions about this item

Should I buy the single battery or the 2-pack?

The listing is a 2-pack, so you receive two 12.8V 7Ah LiFePO4 batteries in one order.

What does the 89.6Wh rating actually give me in use?

At 12.8V nominal voltage, 89.6Wh equals 7Ah of usable energy per battery, delivering twice the usable capacity of an equivalent lead-acid pack.

Can I connect these in series or parallel, and what are the limits?

Each battery supports up to four units in series for higher voltage or four in parallel for more capacity, using the F2 terminals.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.