Overview
The TP4056 Lithium Battery Charger Module is a compact, affordable solution for charging and protecting 18650 lithium-ion batteries. It's widely used in DIY electronics projects, from custom power banks to portable devices. This review covers the Type-C and Micro USB variants, which are functionally similar but differ in connector type.
These modules are available from various online retailers, including Amazon, MakerFocus, and Addicore, with prices typically ranging from $5 to $10 for multi-packs (e.g., 3 to 10 pieces). They are not standalone consumer products but rather components intended for hobbyists and engineers.
What It Offers
The TP4056 module is designed to charge a single 18650 lithium battery via a 5V USB power source and provide essential protection circuits. Key features include:
- Input options: Micro USB or Type-C (depending on variant), plus solder pads for direct 5V input.
- Charging method: Constant-current/constant-voltage (CC/CV) for safe charging.
- Protection IC: Most quality modules include a DW01A protection chip and FS8205A dual MOSFET for over-discharge, overcharge, overcurrent, and short-circuit protection.
- Indicator LEDs: Red for charging, green (or blue) for full charge.
- Configurable charge current: Default 1A, but can be adjusted via an external resistor (Rprog).
Specifications
| Parameter | Value |
|---|---|
| Input voltage | 5V |
| Charging cut-off voltage | 4.2V ± 1% |
| Maximum charge current | 1000mA |
| Over-discharge protection voltage | 2.5V (or 2.4V per some sources) |
| Overcurrent protection | 3A |
| Board size | 2.6 x 1.7 cm |
Pricing
Pricing varies by seller and quantity. Here are typical examples from Amazon and specialized retailers:
- HiLetgo 3pcs TP4056 Type-C: $5.99
- Diymore 20pcs TP4056 Type-C: $9.99
- MakerFocus 10pcs Micro USB: Price not listed in source, but similar modules range from $6 to $12.
Most sellers offer free shipping on orders over a certain amount, and some provide same-day dispatch if ordered before noon (e.g., Addicore).
User Experiences
User feedback on Amazon and other platforms is generally positive, with average ratings between 4.3 and 4.6 stars. Common praises include:
- Reliability: Many users report successful charging and protection in various DIY projects.
- Ease of use: Simple wiring and clear indicator LEDs.
- Value: Multi-packs offer excellent value for money.
However, some users have noted issues:
- Inconsistent quality: A few reports of defective units or modules that fail to charge.
- Lack of documentation: Beginners may find the wiring and activation process confusing.
- Heat generation: Under heavy load, the module can get warm, though this is normal.
Pros and Cons
Pros
- Affordable and widely available.
- Integrated protection (on most variants) safeguards batteries.
- Compact size fits into tight spaces.
- Versatile input via USB or solder pads.
- Adjustable charge current for custom applications.
Cons
- No reverse polarity protection; incorrect wiring can damage the module.
- Requires 1A power source; weaker chargers may not work.
- Activation quirk: Some batteries need a brief charge to activate the protection circuit.
- Quality control varies between sellers.
Summary
The TP4056 Lithium Battery Charger Module is a staple for DIY electronics enthusiasts. It offers a cheap, effective way to charge and protect 18650 cells, with the added convenience of USB connectivity. While it has minor drawbacks like the need for careful wiring and occasional quality inconsistencies, its benefits far outweigh the cons for most users. Whether you choose the Type-C or Micro USB version, you're getting a reliable component that does its job well.
For best results, buy from reputable sellers, double-check your wiring, and ensure your power source can deliver at least 1A. If you're building a project that requires lithium battery management, this module is a solid choice.
