₹220.00 ₹220.00
Product Code: TDT-3S20A
Configuration: 3 Series (3S)
Rated Discharge Current: 20A
Battery Type: 18650 / Li-ion / Li-polymer
Brand: TDT
Category: Battery Management System (BMS)
The 3S 20A TDT Li-ion BMS is a high-performance battery protection circuit designed for 3-cell lithium-ion battery packs. It delivers up to 20A continuous discharge current, making it suitable for medium- to high-power applications such as electric bicycles, portable inverters, solar power systems, and robotics.
Built with high-quality MOSFETs and intelligent protection circuitry, this BMS provides robust protection against overcharge, over-discharge, overcurrent, and short circuits. Its compact design with strong thermal stability ensures long-lasting performance.
| Parameter | Specification |
|---|---|
| Battery Type | Li-ion / Li-polymer |
| Cell Configuration | 3S (3 cells in series) |
| Charging Voltage | 12.6V (4.2V × 3 cells) |
| Rated Discharge Current | 20A |
| Max Discharge Current | 25–30A (short duration) |
| Overcharge Protection | ~4.25V ± 0.05V per cell |
| Over-discharge Protection | ~2.5V ± 0.05V per cell |
| Overcurrent Protection | Yes |
| Short-circuit Protection | Yes |
| Balancing Function | No |
| Operating Temperature | -20°C to +60°C |
| Board Dimensions | Approx. 60mm x 22mm x 3mm |
| Weight | Approx. 9g |
20A continuous current handling
Multi-layer PCB with high thermal stability
Overcharge and over-discharge protection
Overcurrent and short-circuit protection
Designed for high-reliability Li-ion battery packs
Compact size for versatile integration
No automatic balancing function (manual balancing recommended)
Medium-power E-bikes and Scooters
Portable Power Banks and Inverters
Solar Charging and Energy Storage Systems
Robotics and IoT Power Solutions
18650 Battery Pack Assemblies
LED Lighting Systems and UPS Backups