4300mAh 26700-43E lithium iron phosphate battery


**4300 mAh high capacity, 3.2 V voltage, 11.0 mΩ internal resistance**, 4.3 A charging / 12.9 A discharging, ≤100 g, LFP lithium iron phosphate chemistry, Changhong Sanjie high‑capacity, safety‑rated cells, suitable for energy storage, electric vehicles, and other applications.

Product Features

High charge–discharge rates: Designed for the most demanding professional power‑tool and other application scenarios, it can deliver ultra‑high discharge rates of up to 10–15C and support charging rates exceeding 2C.

Ultra-wide temperature performance: The battery can discharge at an ultra-low temperature of −40°C and operate at a high temperature of up to 80°C, while also delivering high‑rate discharge capability at low temperatures.

High Consistency: Produced on an intelligent manufacturing line, with end-to-end digitalization and high-precision control across all process steps, ensuring superior consistency and enhanced safety.

High Security: A fully integrated information system (CRM, PLM, SRM, MES, ERP) ensures high security.


Keywords:

The 26700-43E is a high‑capacity, safety‑focused lithium iron phosphate (LFP) cell. Its key advantages are its large 4,300 mAh capacity and the inherent high safety of LFP chemistry, coupled with a stable 3.2 V nominal voltage and an internal resistance of just 11.0 mΩ. It supports charging at 4.3 A and discharging at 12.9 A, making it ideal for portable energy storage systems and small electric devices. The cell employs a high‑energy‑density LFP cathode material paired with a dedicated electrolyte to enhance both capacity and cycle life. Production utilizes a fully automated assembly line, with rigorous quality control over electrode sheets and packaging. Each unit undergoes 100% full inspection and passes stringent safety tests, ensuring superior safety performance. Its core competitive edge lies in balancing high capacity with exceptional safety: it maintains over 80% of its initial capacity after 1,000 cycles, weighs less than 100 g, and fits standard 26700‑size applications. Applications span energy storage, compact power tools, e‑bikes, and more, with support for customized PACK solutions and comprehensive technical assistance.