IRS 4S2P 9000mah 4S Lithium ion battery XT60 connector

The IRS 4S2P 9000 mAh Li-ion pack is a rechargeable battery pack designed for moderate-voltage DC applications. It consists of eight individual lithium-ion cells arranged in a 4S2P configuration (i.e. four cells in series, two such parallel strings). The pack delivers a nominal voltage of ~14.8 V (4 × ~3.7 V) and a capacity of 9000 mAh. It is typically outfitted with an XT60 main output connector for the discharge path, making it suitable for RC, UAV, robotics, portable devices, or power tools that accept XT60 connectors. To ensure safe and balanced operation, the pack may include a balance lead (for each series group) and an internal protective circuit (BMS or protection module) that guards against overcharge, over-discharge, over-current, and short circuits.

Features:

1. “4S2P” means 4 cells in series, with 2 parallel strings (i.e. a total of 8 cells, arranged as two parallel strings of 4 in series).
2. Nominal pack voltage = sum of 4 nominal cell voltages (for lithium-ion, typically ~3.7 V per cell), so ~14.8 V nominal.
3. Max charge voltage per cell typically ~4.2 V (so pack max ~16.8 V).
4. Discharge is through an XT60 connector (common in RC / drone / hobby packs).
5. Balance leads / balancing connector is often provided to balance the 4 series cells.
6. The “9000 mAh” is the capacity of the parallel combination: each parallel string contributes 9000 mAh / 2 = 4500 mAh (i.e. two strings of 4500 gives 9000 mAh).
7. Being lithium-ion (rather than LiPo), the cell type may be cylindrical (e.g., 18650, 21700, or other Li-ion formats) rather than pouch-type. Li-ion cells typically have lower discharge C-rates than high-performance LiPo.
8. Expected features include over-charge, under-voltage protection (if a protection board is present), and thermal protection. Also safe packaging, shrink wrap, insulating materials, etc.
9. Applications: drones, RC, robotics, electric vehicles (small), where moderate current draw is needed at ~14–16V.

Package Includes:

1 X IRS 4S2P 9000mah 4S Lithium ion battery XT60 connector