01 / 03§ Product code 01759
BMS Module 4S 30A for Li-ion Batteries, 18650 Protection and Balancing, arduino DIY
Reliable 4S 30A BMS module for 18650 Li-ion batteries. Provides protection against overcharge, over-discharge and short circuit. Supports connection of up to 4 batteries and monitors charge balancing. Compact 50x22 mm size. An excellent choice for assembling 14.4 V/16.8 V battery packs.
| Product code | 01759 |
| Category | BMS Boards |
| In stock | 10+ in stock |
76 TL
- Free shipping on orders over 1,000 TL
- After ordering, the item is reserved for you for 24 hours
§ 01 — Specifications
| Type | BMS battery protection module |
| Support | 4S Li-ion 18650 |
| Maximum current | 30 A |
| Voltage | 14.4 V / 16.8 V |
| Protection | over-discharge, overcharge, short circuit |
| Charge balancing | yes |
| Size | 50×22 mm |
| Chip | 8254AA |
§ 02 — Description
The BMS 4S 30A module is a high-efficiency protection and charge balancing board for 18650 lithium-ion batteries. It prevents overcharging, over-discharging and short circuits, extending the service life of battery packs.
🔋 Key features:
✔ Supports up to 4 cells connected in series (4S)
✔ Maximum load current – 30 A
✔ Over-discharge and overcharge protection
✔ Charge balancing for even energy distribution
✔ Compact dimensions: 50 mm × 22 mm
💡 Application:
The module is ideal for assembling 14.4 V/16.8 V battery packs used in e-bikes, portable devices, solar systems and other autonomous projects.
📌 Technical specifications:
Chip: 8254AA
Nominal voltage: 14.4 V (4S)
Maximum voltage: 16.8 V (4S)
Maximum current: 30 A
Board size: 50×22 mm
Operating temperature: from -20°C to +60°C