Jan 31, 2014 #1 A Alvin Estrella Newbie level 1 Joined Jan 31, 2014 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 5 how can i use 12v battery for my 3.7v portable speaker?
Jan 31, 2014 #2 S smijesh Advanced Member level 1 Joined Sep 20, 2013 Messages 412 Helped 163 Reputation 326 Reaction score 163 Trophy points 1,323 Activity points 4,038 Alvin Estrella said: how can i use 12v battery for my 3.7v portable speaker? Click to expand... Try this adapter. This having 3A out put but one speaker required only 400mA max. So you can use multiple speakers. **broken link removed**
Alvin Estrella said: how can i use 12v battery for my 3.7v portable speaker? Click to expand... Try this adapter. This having 3A out put but one speaker required only 400mA max. So you can use multiple speakers. **broken link removed**