TP4056 1A Li-Ion Battery Charging Protection Module

Safely charge and protect your single-cell 3.7V lithium-ion and lithium-polymer batteries with this compact TP4056-based module. Featuring built-in overcharge, over-discharge, and overcurrent protection via the DW01A protection IC and 8205A dual MOSFET, this module delivers a reliable 1A linear charging solution for portable electronics, DIY power banks, solar charging systems, and IoT devices. Available at The Engineer Store, Bengaluru - fast shipping, technical support, and quality guaranteed.

Specifications

Key Features

• Complete Charging + Protection: Unlike basic TP4056 modules (without protection), this version integrates the DW01A and 8205A ICs to guard against overcharge, over-discharge, overcurrent, and short circuit - essential for safe lithium battery operation.
• 1A Fast Charging with CC/CV Profile: Automatically transitions from constant current to constant voltage charging, terminating precisely at 4.2V for optimal battery health and longevity.
• Dual LED Status Indication: Red LED illuminates during active charging; blue or green LED signals charge completion - no guesswork required.
• Micro-USB Input: Conveniently power the module from any standard 5V USB adapter, power bank, or computer USB port. Solder pads also available for direct wiring.
• Dedicated Output Pads (OUT+/OUT): Protected output terminals ensure your connected load is automatically disconnected if battery voltage drops too low, preventing permanent cell damage.
• Ultra-Compact Form Factor: At just 25mm x 19mm, it fits inside the tightest enclosures - ideal for wearables, miniature robots, and space-constrained builds.
• Thermal Regulation: The TP4056 IC includes internal thermal feedback that automatically reduces charge current if the chip temperature rises excessively, preventing overheating.
• Adjustable Charge Current: The onboard programming resistor (default 1.2kOhm for 1A) can be swapped to set charge currents from 130mA to 1A, accommodating smaller-capacity batteries.

How It Works

• Charging Phase: Connect a 5V source to the Micro-USB port or IN+/IN pads. The TP4056 charges the battery connected to BAT+/BAT at a constant 1A current until the cell reaches 4.2V, then tapers the current until charging is complete.
• Protection Phase: The DW01A IC continuously monitors the battery voltage. If the cell drops below ~2.4V during discharge, the 8205A MOSFETs disconnect the load from OUT+/OUT. Similarly, if overcurrent (~3A) or a short circuit is detected, the output is immediately cut off.
• Important Wiring Note: Always connect your load to the OUT+/OUT pads (not directly to BAT+/BAT) to benefit from the protection circuitry. Connecting directly to the battery pads bypasses all protection.

Pin / Pad Description

Frequently Asked Questions

Buy TP4056 1A Li-Ion Battery Charging Protection Module Online in India

Purchase the TP4056 1A Li-Ion Battery Charging Protection Module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on TP4056 1A Li-Ion Battery Charging Protection Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.

Looking to buy TP4056 1A Li-Ion Battery Charging Protection Module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.