Author Topic: voltage to fully charge batteries  (Read 1705 times)

0 Members and 1 Guest are viewing this topic.

bluewind

  • Newbie
  • *
  • Posts: 8
voltage to fully charge batteries
« on: April 16, 2014, 04:35:25 PM »
I built a 10 foot Dan and Dan style turbine and would it for 48 volts. My question is will it fully charge a 48 volt battery setup or will I need to wire my batteries 24 volt and use a classic? Auto,s use 14 volts to charge a 12 volt battery, do I need more than the 48 volts to charge the 48 volt battery system?

Mary B

  • Administrator
  • SuperHero Member
  • *****
  • Posts: 3169
Re: voltage to fully charge batteries
« Reply #1 on: April 16, 2014, 05:16:37 PM »
yes 52 volts or more but the 48 volt stator from the Dan's should be able to put that out.

Flux

  • Super Hero Member Plus
  • *******
  • Posts: 6275
Re: voltage to fully charge batteries
« Reply #2 on: April 17, 2014, 05:46:06 AM »
The nominal 48v stator winding is designed to reach 48v at cut in speed, the actual open circuit voltage rises with speed and so at twice cut in wind speed you will have near 100v open circuit so no problem there. To fully charge and equalise a 48v battery you are looking at close on 60v but the stator is intended to cope with this.

The 48v stator is just a nominal way of saying it is intended for a 48v battery. A 24v stator would be meant to suit a 24v battery but in high winds it would still charge a 48v battery although you would get a poor yield compared with its intended voltage.

Flux

bluewind

  • Newbie
  • *
  • Posts: 8
Re: voltage to fully charge batteries
« Reply #3 on: April 18, 2014, 09:10:55 PM »
thanks for the answers.