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10W 3.7V 4.2V 3A Overcharge Protection Module
The 10W 3.7V 4.2V 3A Overcharge Protection Module is a value-for-money battery protection board designed for everyday users. It features Rated Voltage (VDC): 3.7 and Max Current (A): 3.
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Quick Specs
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About This Product
The 10W 3.7V 4.2V 3A Overcharge Protection Module is a value-for-money battery protection board designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Rated Voltage (VDC): 3.7 — works with standard household power
- Max Current (A): 3
- Power Rating: 10
- Battery Type: 18650 LI-ION — keeps you powered without frequent recharging
- Length (mm): 12
- Width (mm): 09
- Weight (g): 03
- Operating Voltage (V): 2.7~5.5 — works with standard household power
Why Buy from Elecvora?
Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.
The 10W 3.7V–4.2V 3A Overcharge Protection Module is designed for safe and reliable charging of single-cell 18650 Li-ion batteries. Based on TP4056 architecture, this protection board provides overcharge, over-discharge, and overcurrent protection to extend battery life and prevent damage. It supports up to 3A current handling and ensures stable 4.2V cutoff voltage for safe charging. Compact and lightweight, it is ideal for DIY battery packs, portable electronics, and embedded power systems.
Features:
- Supports 3.7V Li-ion batteries
- 4.2V precise charge cutoff
- 3A current handling capacity
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Designed for 18650 batteries
- Compact PCB design




