Sahnova Solar
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LWS Smart BMS 3S 4S 50A 100A Lifepo4 RS485 CANBUS Li-ion BT Battery Management System
Function: Detect and protect the battery from over-charge, over-discharge, over-current, short-circuit, and temperature issues. Includes an automatic voltage balance function. Designed with high-end electronic components (IC and MOSFET) for stable performance and flexible application.
| PCM Specifications For 12.8V(4S) Li-ion Battery Packs | |||
|---|---|---|---|
| No. | Test Item | Criterion | |
| 1 | Voltage | Charging voltage | DC:14.4V CC/CV |
| 2 | Current | Balance current for single cell | 60±20mA |
| 3 | Over charge | Detection voltage | 3.65±0.025V |
| 4 | Over discharge | Detection voltage | 2.5±0.05V |
| 5 | Over current | Detection current | 70±20A |
| 6 | Resistance | MOSFET resistance | ≤50mΩ |
| 7 | Temperature | Operating Range | -20~+60ºC |
Founded in 2013, the facility specializes in providing Battery PCM & BMS for Lithium ion, LiFePo4, and LTO battery packs, along with ODM & OEM services. With over 900 types of hardware and software BMS solutions developed, including protocols such as HDQ, I2C, SMBUS, RS485, RS232, and Bluetooth.
Solutions cover battery assemblies from 1S to 35S in series, with working currents up to 350A. These products are widely implemented in lighting, power tools, electric bicycles, medical equipment, and EV applications. The factory is ISO 9001:2015 certified and was recognized for High Technology Expertise in 2018.
