2006-12-02 04:26:56 · 7 answers · asked by gcm4849 1 in Consumer Electronics ➔ Other - Electronics
Buy a fourth 12V battery. Or a transformer.
2006-12-02 04:28:35 · answer #1 · answered by Anonymous · 1⤊ 1⤋
You can't, 36 VDC is all you can get.
1- You can get a 4th battery.
2- Depending on battery size, (if you have 3 automobile batteries), you can get a 12 volt inverter to 120 VAC.
3- Last but not least, you may have an item that will run for a while on the lower voltage and that item (Radio for example) doesn't require much current and will treat the 36VDC as a low battery and work anyway.
Good Luck ! !
2006-12-02 12:44:57 · answer #2 · answered by norman8012003 4 · 0⤊ 0⤋
Hook up one of the batteries in series with eachother, then hook up a large capacitor in series with one of the batteries. Switch it so it adds its voltage to the series batteries and you'll have 48V for a fraction of a second. There's no way for you to get 48V constant current from 36V constant current, though, by basic conservation of energy. You're gonna have to pull in 12*I watts somewhere along the way.
2006-12-02 12:43:38 · answer #3 · answered by MooseBoys 6 · 0⤊ 0⤋
Better do the math first. 3 x 12 = 36. 48 - 36 = 12. Hmmmmmmm. Looks like you need another battery.
2006-12-02 12:37:35 · answer #4 · answered by ally_oop_64 4 · 0⤊ 0⤋
You can't.3 batteries connected in series will only supply 36 volts.you need 4 batteries to get 48 volts.
2006-12-02 12:30:24 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Convert it to AC and then run it through a step up transformer, reconvert to DC, then a voltage regulator. Excpect curreent loss as you gain voltage you lose current and visa versa
2006-12-02 12:39:39 · answer #6 · answered by wayne 4 · 0⤊ 0⤋
i know how to get 120 v ac out of a 13.8 v dc car battery.
2006-12-02 12:31:25 · answer #7 · answered by the one and only robertc1985 4 · 0⤊ 1⤋