Ford Transit USA Forum banner

Charging a house battery with factory inverter

3193 Views 9 Replies 8 Participants Last post by  Budsky
My intention was to use the factory installed inverter with a battery charger to charge 6 volt house batteries while driving.

What issues come into play when trying to charge a 6 volt AGM battery (house) with the Ford factory installed inverter using a battery charger?

Is this possible without damage to the vehicle batteries/inverter or charger...charging only while driving?

I have read somewhere that it is not possible. I am no electrician...but assumed the inverter would be strong enough to run power tools like a drill, jig-saw and a simple battery charger. Maybe not.

What are other options for charging the house battery without solar panels (solar panels are in the distant future...but not now.)

Thanks for your suggestions.
1 - 10 of 10 Posts
You would have to wonder if the modified sign wave inverter will cause issues with either a transformer type or switching type charger. Also, it would have to be a small one with the current limitations. A multimeter would confirm proper function.
  • Like
Reactions: 1
It might be possible but in my opinion it is a wasted effort as the stock inverter is so low power that the amount of charging you could do will be inconsequential.

Also, you probably could only power a trickle charger.
  • Like
Reactions: 1
Agreed - you are not going to be able to run much of a battery charger from that inverter. If you place any demands at all on your house batteries, then you would want to install a larger, pure sine wave inverter and a decent 3-stage charger. Another good alternative is the Stirling battery to battery charger, in which case you would not need the inverter.
Don't forget, your 6volt batteries will be connected in series, so you are in fact charging a 12 volt house battery.
  • Like
Reactions: 2
The stock inverter can charge your phone and keep the kid's gaming device running. Just not at the same time. Think in terms of those capabilities and you'll be fine.
  • Like
Reactions: 1
thanks
So David, if i purchase a STERLING battery to battery charger... and hook them up directly...with no need for an inverter...while the vehicle is running...the 6 volt batteries ( in a series ) will charge up?
math

150 watts i think that is what the in house inverter is. So 150 watts divided by 12.5 volts nominal from the outlet would mean that you have 12 amps available from the inverter to hook to the battery charger the only problem that I see is that with 6 volt batteries you have a higher amperage output so I would think that you have to charge them at a higher amperage. I have not seen one amp 6 volt chargers so I don't know about them.
  • Like
Reactions: 1
I wonder if there is something like a Trik-L-Start or Amp-L-Start which can directly convert DC to DC here, saving the step of 120 volts and back.
  • Like
Reactions: 1
Yes there are several brands of DC to DC battery chargers. They've been used by a few here.
  • Like
Reactions: 1
1 - 10 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top