The_Next_Guy
Active Member
I have this 3.7v 310mAh battery that I'm going to use in an attiny project. It has a protection pcb but only 2 wires coming off. A positive and negative.
How to charge a 3.7v lithium battery?
- Thread starter The_Next_Guy
- Start date
Shank
Formerly Known As Dyxlesci
Use a 3.7v lithium ion/polymer charger.
This seems like a sarcastic response but that's what you should do. Buy one and hook it up. Don't try to charge it with improvised circuitry unless you are making the proper charging circuit and know exactly what you are doing. Lithium ion batteries are dangerous if misused
This seems like a sarcastic response but that's what you should do. Buy one and hook it up. Don't try to charge it with improvised circuitry unless you are making the proper charging circuit and know exactly what you are doing. Lithium ion batteries are dangerous if misused
Use one of these: http://www.instructables.com/id/Blu...Speakers/step6/TP4056-Li-lon-Battery-Charger/. They are really cheap and also work quite well. Just be sure to use the right Rprog resistor to select the charging current.
naimlessone
Active Member
Use this:
$20 including s/h
http://www.ebay.com/itm/131252194436?_t ... EBIDX%3AIT
Lets you charge anything from 3.7v to 14.8v with the flip of a switch.
Used it on my first portable and worked great.
$20 including s/h
http://www.ebay.com/itm/131252194436?_t ... EBIDX%3AIT
Lets you charge anything from 3.7v to 14.8v with the flip of a switch.
Used it on my first portable and worked great.
The_Next_Guy
Active Member
Aurelio said:
Thanks man, I just bought 20 from ebay!
