3S (11.1V) 100A Lithium Battery Protection Board — Balanced Same‑Port
This compact 3S (11.1V) protection board provides continuous 100A discharge current and built‑in cell equalization for reliable management of three‑cell lithium battery packs. Designed with a same‑port charge/discharge connection and a metal heat sink for improved thermal dissipation, the board is suited to high‑current 12V applications such as inverters, UPS backup packs and electric start tools. The three independent channels monitor and protect each series cell, while the equalization function helps keep cell voltages balanced during operation.
Why choose this board:
High continuous current rating (100A) for demanding loads.
Same‑port wiring reduces connector complexity for DIY packs and system builds.
Heat sink and airflow design help maintain stable temperatures under load.
Minimal footprint and low weight make it easy to integrate into compact battery enclosures.
Installation note: Follow the supplied wiring diagram carefully — connect cells in proper sequence, observe polarity, and ensure the same‑port connector is used for both charge and discharge as shown in the diagram.
Package Content
1 × 3S (11.1V) 100A lithium battery protection board with metal heat sink (as shown)
