parallel charging a cr2 battery

2 posts / 0 new
Last post
Last seen: 1 year 10 months ago
Joined: 06/11/2011 - 15:52
Posts: 94
Location: CA, USA
parallel charging a cr2 battery

Is it possible to use an 18650 battery to charge a cr2 battery rated at 3.0v? If so, what voltage should the 18650 be before connecting it to the cr2 battery? cr2 battery is this one: rated at 3.6v to 2.0v.

scaru's picture
Last seen: 5 years 1 month ago
Joined: 03/22/2012 - 13:36
Posts: 6946
Location: Virginia

That is a very bad idea, just buy a suitable charger and do it the safe way.