TP4056 5V 1A Micro USB 18650 Lithium Battery Charging Board Module

Excellent, they all work really good.

Great little boards, used initials to recycle 18650 lithium batteries out of failed laptop batteries, work great and have a charging and charged led which is a great feature. Have recently also used them to recycle li-po batteries out of discarded vape pens I kept finding whilst walking the dog. Successfully replaced in devices that used two AA batteries and also made the device usb rechargeable.

Nice little unit, ideal for charging a Lithium ion battery cell . It has a red LED for charging and green when charged. I have had one socket detach from the board, too fiddly to solder back as the track ripped due to a stiff plug to socket.

Used to temporarily revive the battery in a Switch console that had charge port damage. Worked well. Don't need 5 but at this price can't complain! Be careful which type of Li-ion battery you try and charge with it though as there are a lot of different types and this is designed for particular battery formulations/chemistry.

After my sons wireless radio was dropped the charger port broke off from the pcb along with the tracks so I couldn't easily replace it like for like, so I purchased some of these and hot glued it to the pcb ran a micro usb lead to the old hole and it was as good as new.

Read a lot of reports stating these wouldn`t do 2x 18650 in parallel. ~THEY DO. Ripped the batteries out an old laptop wired them up to this. Charged with zero issues.. ( admittedly i was sleeping with one eye open just incase hahaha ). But, over a month of charging various batteries in various devices. ( perfect to use with the bluetooth modules ).. all good,...!! PI-ZERO USERS I have one of these connected to my raspberry pi ZERO. Charging up a random 1000mha ( not 18650 ), and its going super strong. You can still use the pi, as its charging.

Very good charging curent - pushes up to 4.23V in the lithium cells however they heat up like they’re about to burn, even with one lithium battery cell (18650) charging from a 1 A charger. Other than the heat, it’s a very good product.

I purchased a SOLAR powered PIR LED with a 2000mAh lithium battery, added one of these units inside the LED enclosure, external power is via an extension cable. I fed 5V directly to the PCB via a USB power bank. The light is located on a north facing wall, it gets no direct sunlight, this low current very low voltage system has lasted three years so far.

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