Charging a 7.4V Battery While Using It
matt 2019-01-11 03:13:29 1321 Views2 Replies Hey folks,
I’m working on a project that requires a bit more voltage than the 3.7V Li-Ion batteries that are easy to find on various hobby sites, so I’m looking at 7.4V ones. I would really like to be able to charge while using them; does anyone have any experience with this part:
https://www.dfrobot.com/product-1713.html
… and does it look safe to use it to charge while the battery is in use (i.e., by powering my circuit off the battery +/- terminals while also connected to USB for charging)? If I combined it with something like this battery:
http://www.tenergy.com/31444
… which has a protection circuit, am I likely to be able to avoid starting a fire/blowing something up?
Thanks in advance!
-Matt
I’m working on a project that requires a bit more voltage than the 3.7V Li-Ion batteries that are easy to find on various hobby sites, so I’m looking at 7.4V ones. I would really like to be able to charge while using them; does anyone have any experience with this part:
https://www.dfrobot.com/product-1713.html
… and does it look safe to use it to charge while the battery is in use (i.e., by powering my circuit off the battery +/- terminals while also connected to USB for charging)? If I combined it with something like this battery:
http://www.tenergy.com/31444
… which has a protection circuit, am I likely to be able to avoid starting a fire/blowing something up?
Thanks in advance!
-Matt
2019-01-11 11:51:34 Good to know, thanks! I’m still kind of new to these things, how would I identify a) if cooling is necessary, b) what kind of cooling I’d need to implement? I see that the charger comes with an optional heat sink, would it require more than just that? matt
matt 2019-01-11 10:12:56 This battery charge supports charging and using at the same time. Not sure what environment you would use them, but you may need to cooling it well when using it. robert.chen
robert.chen 