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charging 4 Six Volts

gsh
Explorer
Explorer
Hey there,

Have read lots on here and have found great info in regards to batteries, but nothing linked to charging 4 6 volt batteries at a time with one charger... is it possible? if it is will it be very slow?


Any info would be great thanks
23 REPLIES 23

time2roll
Nomad
Nomad
gsh wrote:
So, maybe I need to invest in a more powerful charger.. Even when camping.....

Im pretty sure you cannot hookup a secondary charger to your batteries when they are connected to the trailer. So, would it be best to instal an isolator so at the turn of a switch disconnect my batteries from the trailer and then connect say a 40 amp charger to my generator and charge them from there? 1 hour in morning, and 1 hour a night, will probably put more juice back into them then if they were just charging from the trailer converter!!

yes no? maybe so?
What generator? Honda 2000 will drive about 70 amps into the battery. Larger generator can put 120 amps into four GC2 low on charge.

May as well post your converter model. Some just need a wizard or IQ controller to start breathing fire into the battery. Or you can upgrade the converter as needed.

That 40 amp portable charger is a bit slow but will max out a Honda 1000.

ggrant119
Explorer
Explorer
A

Crazy_Ray
Explorer
Explorer
You not going to charge them with one hour charging in morning and one in the evening. JMO. Goggle battering charging
RET ARMY 1980,"Tiny" furkid, Class A, 2007 Bounder 35E, Ford V10 w/Steer Safe, 4 6V CROWN,GC235,525W Solar Kyocera, TriStar 45 Controller,Tri-Metric 2020,Yamaha 2400, TOW CRV. Ready Brake. "Living Our Dream" NASCAR #11-18-19-20- LOVE CO,NM,AZ

2oldman
Explorer II
Explorer II
gsh wrote:
Im pretty sure you cannot hookup a secondary charger to your batteries when they are connected to the trailer... connect say a 40 amp charger to my generator and charge them from there?.. will probably put more juice back into them then if they were just charging from the trailer converter!!
Not sure I follow this. You can put as many chargers as you want on them, all hooked to shore power, hooked up to trailer or not. However, whether those chargers will work together is another story.
"If I'm wearing long pants, I'm too far north" - 2oldman

1492
Moderator
Moderator
Moved from Forum Technical Support

gsh
Explorer
Explorer
So, maybe I need to invest in a more powerful charger.. Even when camping.....

Im pretty sure you cannot hookup a secondary charger to your batteries when they are connected to the trailer. So, would it be best to instal an isolator so at the turn of a switch disconnect my batteries from the trailer and then connect say a 40 amp charger to my generator and charge them from there? 1 hour in morning, and 1 hour a night, will probably put more juice back into them then if they were just charging from the trailer converter!!

yes no? maybe so?

time2roll
Nomad
Nomad
Yes definitely possible. Speed will depend on the charging system and how low on charge the battery is.
Same as any battery system. May as well post more details to get better answers.

Golden_HVAC
Explorer
Explorer
2oldman wrote:
It's just one big 12v battery in 4 pieces. Of course it's possible, and the smaller the amperage of the charger, the longer it will take.


Yes that is it! 4 easy to carry 67 pound batteries with a total capacity of 440 amp hours!

So if you have a 45 amp converter/charger, it might take 2 hours to get it from 50% full to 70% full and about 6 more hours to get it to 85% full and perhaps as many as 6 more hours to get it from 85% to 96% full.

You are best off just running your generator about 1 hour in the morning and night, and it will charge the battery from 50% full to about 65% full in 1 hour. This is plenty of power to get through most nights, unless you have a CPAP and really use a lot of power nightly!

You do not need to have a 65 or 70 amp charger. 45 amps is plenty. I have a 70 amp charger built into my inverter/charger. I rarely use it, and then normally set it to run only at 50% capacity, that is 35 amps max output. Over 45 amps, and the battery tends to get warm, and the inverter fan comes on. While not nearly as noisy as the generator, I don't like overheating the battery.

Mainly I use my solar system to slowly charge the battery. It takes all day to put back 120 amp hours, but it does, and I like to watch a lot of TV while out dry camping! Basically I hate campgrounds, except the state parks with lots of space between the sites, and no electrical power is typical there. BLM land with more than 300 feet between the next RV is what I look for!

Good luck,

Fred.

Good luck,

Fred.
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Porsche or Country Coach!



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2oldman
Explorer II
Explorer II
It's just one big 12v battery in 4 pieces. Of course it's possible, and the smaller the amperage of the charger, the longer it will take.
"If I'm wearing long pants, I'm too far north" - 2oldman