How to: Increase Battery Voltage - connecting inverter / charger batteries in series

[NH4NO3CH3NO2]

ok i have a ?... i own an amplifier that requires 16 volts to push out max wattage. at the moment i have an 350 amp alternator supplying a stock 12 volt battery and a spare deep cycle 12 volt battery.. how will i push 16 volts out of them? at around 3000 rpm i am getting 14 volts out of the batterys but when i turn up my cd deck the subwoofer drains the voltage down to about 12v. so my problems are i need more amphours plus i need to raise my voltage to 16 volts. So what next? Thanks

[jaysenstudios]

Im doing a project needing 48v, and im using 3.3v cells, so can i hook 15 together?

[jeffddow]

@jaysenstudios yeah but you might want the amperage to be the same

[robviolin1]

 thanks for sharing.

[RDcustoms]

how would u keep them charged ? would u need a alternator that charges at 24 volts ?

[jihadhamwi]

thanks for this vedio,but i want to ask ..what we have amp here?

we now have 24 volts but how much amp per hour for this connection?

[kosec321]

@jihadhamwi I can answer that. If you connect 2 exactly the same batteries in serial, the voltage will ad up...so 12v + 12v = 24v ...but the Amp hours (or Amperes) will remain the same as it was for one of the batteries...in this case 75 Amp hours (Ah) remain the same......if you want 12v and double the Amp hours ( or Amperes) you connect two bateries in parallel... so positive to positive, and negative to negative... I hope this helps.

[thesire1000]

My ? is , i have three batteries #1 is main vehicle battery # 2 & #3 are spare batteries . # 1 separated using a starter solenoid for charging to #2 & #3 .

How do i connect #2 and #3 in series and to what terminals do i connect my 1500w inverter

[rblain4780]

How would I hook up an inverter to this set up? Negative lead to battery ONE negative terminal...then Positive lead to battery ONE positive terminal??? Thanks