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BMS NMC 3S 20A DALY (a5s7)
| Specification | Details |
|---|---|
| Brand | Daly |
| Model | A5S7 |
| Battery Type | Lithium-ion (NMC) |
| Cell Configuration | 3S (3 cells in series) |
| Nominal Voltage | 11.1V |
| Full Charge Voltage | 12.6V |
| Continuous Discharge Current | 20A |
| Charge Current | 10-20A |
| Balance Current | ~30-50 mA |
| Over-charge Protection | ~4.25V per cell |
| Over-discharge Protection | ~2.7-2.9V per cell |
| Short-circuit Protection | Yes |
| Working Temperature | −20°C to 70°C |
| Internal Resistance | ≤20mΩ |
Original price was: ₹1,999.00.₹959.00Current price is: ₹959.00.
(Save ₹1,040.00)
Out of stock
Description
BMS NMC 3S 20A DALY (a5s7)
DALY BMS NMC 3S 20A (A5S7) is a battery protection and management module designed for 3-series lithium-ion (NMC) battery packs. It supports 20A continuous discharge current and protects the battery from over-charge, over-discharge, over-current, short circuit, and temperature faults. This BMS is commonly used in 12V lithium battery packs, 18650 DIY batteries, power tools, solar lights, and portable electronics.
The DALY 3S 20A NMC BMS is a compact battery management board designed to safely operate three lithium-ion cells connected in series (3S configuration). It constantly monitors the voltage of each cell, pack current, and operating temperature to maintain safe charging and discharging conditions.
If abnormal conditions occur—such as over-charging, deep discharge, excessive current draw, or a short circuit—the BMS immediately disconnects the battery pack to prevent damage and ensure user safety.
The module also includes cell balancing, which equalizes the voltage of each cell during charging. This helps maintain battery efficiency and increases the lifespan of the battery pack.
Because of its 20A current capability, this BMS is suitable for medium-power applications like DIY battery packs, portable electronics, LED backup systems, robotics, and small electric devices.
Key Features
- Supports 3S lithium-ion (NMC) battery pack
- 20A continuous discharge current
- Built-in passive cell balancing
- Over-charge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- High-precision voltage monitoring
- Compact PCB design for easy installation
More Info
Protection Functions
The DALY 3S 20A BMS provides several safety protections:
- Over-charge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Cell voltage balancing
- Temperature protection
These protections prevent battery overheating, damage, and unsafe conditions.
Applications
This BMS is widely used in:
- 12V lithium battery packs (18650 / 21700 cells)
- DIY lithium battery projects
- Solar lighting systems
- Power banks and portable power packs
- Robotics and electronics projects
- Small electric vehicles and tools
✅ Summary:
The DALY BMS NMC 3S 20A (A5S7) is a reliable battery protection module designed for 11.1V lithium-ion battery packs, offering 20A current capability, cell balancing, and multiple safety protections to ensure long battery life and safe operation.
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