Author Topic: question about mcp73831 lipo charging boards  (Read 805 times)

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Offline manabana9Topic starter

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question about mcp73831 lipo charging boards
« on: October 11, 2020, 04:41:06 pm »
so i was wondering if the micro lipo or the powerboost boards from adafruit are viable ways to charge and protect lipo batteries, as they only have one chip on them, the mcp73831. is this good enough, or should i just stick to the generic tp4056 boards i can get off ebay.

I AM A NEWBIE AND ALSO 17 YEARS OLD SO IT IS EXTREMELY POSSIBLE I
HAVE NO IDEA WHAT I AM SAYING AND AM A MASSIVE IDIOT
 

Offline reboots

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Re: question about mcp73831 lipo charging boards
« Reply #1 on: October 11, 2020, 05:25:25 pm »
Note that the MCP73831 only supports 500mA charge current, while the TP4056 supports up to 1000mA. That means the TP4056 will charge faster, but you may need a thermistor output from the battery to prevent overheating. See the manufacturers' datasheets for more information:

MCP73831: https://www.microchip.com/wwwproducts/en/en024903
TP4056: https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/TP4056.pdf

Neither chip by itself supports certain Li-Poly battery safety functions, such as discharge current limiting or undervoltage. Either would work fine to charge a Li-Poly cell with a built-in protection PCB.

I don't see an Adafruit charger with battery protection, but some of the TP4056 chargers on eBay do have an additional protection circuit (like the linked example). Those might be a better choice for a bare cell with no built-in protection.

https://www.ebay.com/itm/223588562034

Your disclaimer isn't needed. Your question was reasonable and comprehensible.
 


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