Lenovo ThinkPad T470 / T570 / P51s Green Cell 4400mAh Battery (Li-Ion 10.8V) - (01AV424)

Description

The Green Cell 4400 mAh replacement battery (reference 01AV424) is a precision power component designed for the renovation and maintenance of Lenovo ThinkPad professional laptops of the T470, T570, A475, P51s, and ThinkPad 25 series. Intended for IT maintenance technicians, B2B refurbishment workshops, and spare parts resellers, this part offers a reliable solution to restore the nominal battery life of mobile workstations under a 3-month B2B warranty.

Electrochemicaly, this module integrates an assembly of 6 high-density Lithium-ion (Li-Ion) cells from the Green Cell brand, delivering a capacity of 4400 mAh at a nominal voltage of 10.8V (48 Wh). This configuration guarantees perfect electrical signal stability and supports up to 500 full charge cycles while retaining optimal capacity remanence. The architecture embeds an intelligent electronic management circuit (BMS - Battery Management System) that controls the regulation of the charging current. This device secures the component against overvoltages, deep discharges, short circuits, as well as abnormal thermal rises of the host system.

The external casing is molded in a thermo-resistant high-density ABS polymer, rigorously adjusted to the original dimensions and anchorages of the manufacturer. Designed to exploit Lenovo Power Bridge technology, this removable external module inserts directly into the rear bay of the laptop by simple snapping, guaranteeing a perfect mechanical lock with the chassis safety latches without requiring the opening of the lower cover.

Technical specifications

• Manufacturer reference: 01AV424 (Green Cell Equivalents LE131 / 01AV422, 01AV423, 01AV425, 01AV490, 01AV491, 01AV492, SB10K97579)
• Technology / Material: Lithium-ion (Li-Ion) accumulators, ABS polymer rigid casing
• Compatibility: Lenovo ThinkPad T470, ThinkPad T570, ThinkPad A475, ThinkPad P51s, ThinkPad 25 (T25)
• Dimensions: 207 x 53 x 20 mm
• Weight: 310 g
• Power / Standards: Nominal voltage 10.8V (11.1V compatible) / Capacity 4400 mAh (48 Wh) / CE, RoHS certifications
• Number of cells: 6 Li-Ion cells
• Integrated protections: BMS board with anti-overcharge, anti-overheating, short-circuit, and deep discharge security

Workshop Tip & Usage

Note that certain compatible ThinkPad computers (such as the T470 or T570) feature a dual-battery system (an integrated internal battery and a removable external battery). Make sure with your customer that this is indeed the external battery clipping onto the back of the chassis and not the flat internal module. During the first workshop deployment, it is recommended to perform a complete calibration cycle: charge the accumulator to 100% via the mains adapter, then let it discharge gradually down to 10-15% before carrying out an uninterrupted recharge. Avoid discharges below the critical threshold of 5% to prevent premature chemical alteration of the Li-ion cells.