For battery cells, review the product description for real-world current recommendations, testing notes, and application guidance. Manufacturer maximum ratings should be treated as limits, not the best target for long-term pack health.
Description
Compact USB-C charging for single-cell lithium-ion projects
This TP4056-based module provides convenient USB-C charging for one 3.7V nominal lithium-ion or lithium-polymer cell. It combines a constant-current/constant-voltage charging stage with onboard cell protection in a small board suited to battery prototypes, repairs, and compact electronics.
Key features
- USB-C 5V input
- Charges one 3.7V nominal lithium-ion or LiPo cell to 4.2V
- Up to 1A charging current under suitable thermal and power conditions
- Onboard overcharge, over-discharge, and over-current protection
- LED charging and full-charge status indicators
Important compatibility notes
This is a single-cell charger, not a boost converter, USB Power Delivery module, or charger for cells connected in series. Confirm polarity and board pinout before connecting a battery. Charging performance depends on input voltage, cable quality, ambient temperature, and heat dissipation.
Safety
Use only with compatible rechargeable lithium-ion chemistry and within the cell manufacturer's limits. Do not charge damaged, swollen, overheated, or unidentified cells. Insulate exposed conductors and never leave charging batteries unattended.
Package includes: 1 × TP4056 USB-C charger/protection board.
Orders ship from Florida when inventory is available. Lithium-ion cells require proper handling, protected packs, correct chargers, and safe storage. Do not solder directly to battery terminals.
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Everything is great 100%recommended fast and professional
Daniel Kammerdiener
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One of my cell orders was short one cell. When I went to send a text to the customer contact (this is rare and awesome way to reach out), the reply on a national holiday came within 15 min. That level of customer service is incredible, like family. I really appreciate that!
Joseph Krienert
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Wow, these cells are great!
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