orso2020 10 Posted July 24, 2013 Share Posted July 24, 2013 Looking for some light weight, rechargeable batteries that may be suitable to power up to 18 servos for at least 30 minutes, running semi-continuously. Quote Link to post Share on other sites
bluehash 1,581 Posted July 24, 2013 Share Posted July 24, 2013 You can try rechargeable Eneloop batteries.. or you can buy RC batteries used in quads/rc cars. Quote Link to post Share on other sites
rockets4kids 204 Posted July 24, 2013 Share Posted July 24, 2013 R/C LiPos can be very affordable, and convenient with wires broken out, but be aware they almost never include over-current or discharge protection. And given that even small packs are capable of delivering tens of amps when shorted, you need to be *very* careful not to short them! Quote Link to post Share on other sites
bluehash 1,581 Posted July 24, 2013 Share Posted July 24, 2013 R/C LiPos can be very affordable, and convenient with wires broken out, but be aware they almost never include over-current or discharge protection. And given that even small packs are capable of delivering tens of amps when shorted, you need to be *very* careful not to short them! True. The only investment @@orso2020 would need to do is a charger. I have the hobbyking accucel charger. Quote Link to post Share on other sites
JWoodrell 285 Posted July 24, 2013 Share Posted July 24, 2013 You can easily build charging into your own pcb. I use the MCP73831 chip. Handles all the nitty gritty of charging for you. It can handle up to 500 ma charging current internally, although you could use it to control a larger external circuit for larger charging currents https://www.sparkfun.com/datasheets/Prototyping/Batteries/MCP73831T.pdf GeekDoc 1 Quote Link to post Share on other sites
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