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The 2S‑10A Li‑Ion BMS is designed to protect and manage battery packs made of two lithium‑ion cells in series. It supports a continuous current of 10 A, making it suitable for applications requiring medium power, such as portable tools, RC hobby electronics, power banks, or small electric vehicles. It safeguards the battery pack from common issues like overcharge, over‑discharge, overcurrent, short circuits, and extreme temperature.
| Parameter | Typical Value |
|---|---|
| Cell Configuration | 2 cells in series (2S) |
| Nominal Pack Voltage | ~7.4 V (3.7 V × 2) |
| Fully Charged Voltage | ~8.4 V (4.2 V × 2) |
| Continuous Discharge/Charge Current | 10 A |
| Overcharge Detection Voltage | ~ 4.25 V ±0.05 V per cell Robu+3ayaatech.com+3quawintec.com+3 |
| Overcharge Release Voltage | ~ 4.05‑4.15 V per cell quawintec.com+2Robu+2 |
| Over‑discharge Detection Voltage | ~ 2.4‑2.8 V per cell quawintec.com+2Robu+2 |
| Over‑discharge Release Voltage | ~ 3.0 V per cell quawintec.com+2Robu+2 |
| Overcurrent / Short Circuit Protection | Yes; with fast detection and auto‑recovery in many designs ayaatech.com+2eybms.com+2 |
| Operating Temperature | Commonly −20 °C to +50‑60 °C / −20 °C to +70 °C depending on model lws-pcm.en.made-in-china.com+2eybms.com+2 |
| Quiescent (standby) Current | Very low; often < 20 µA quawintec.com+2ayaatech.com+2 |
| PCB Size / Dimensions | Varies by manufacturer; e.g. ~ L51 × W9 × T2‑3 mm is common quawintec.com+2quawintec.com+2 |
| Cell Chemistry Supported | Li‑ion / LiPo / NMC, etc. Some also support LiFePO₄ with different voltage ranges quawintec.com+1 |
Overcharge protection: disconnects the charge path when cell voltage exceeds safe threshold.
Over‑discharge protection: disconnects load when cell voltage drops too low.
Overcurrent protection: cuts off in case of excessive load.
Short‑circuit protection: quick response to prevent damage.
Temperature protection (in some models): either via a thermistor/NTC or temperature cutoff.
Auto recovery in many modules after a fault clears.
Portable power packs and power banks
RC vehicles and drones (light to moderate loads)
LED lighting systems
DIY battery projects
Small motor drives
Backup battery systems for electronics
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