- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
Can I charge a 48 volt battery with a 12 volt charger?
Posted on 10/22/15 at 2:10 pm
Posted on 10/22/15 at 2:10 pm
I put together 4 12 volt batteries in series, and I want to charge them. If I get a 12 volt charger, will it just take longer to charge the 48 volt combination, or will it simply not work (or worse)?
10
Posted on 10/22/15 at 2:35 pm to baybeefeetz
what in the actual frick are you trying to do exactly
Posted on 10/22/15 at 3:00 pm to baybeefeetz
Well, I am not an electrical engineer, but I'm fairly certain you'd need an equivalent or greater voltage in the charger than you have in the batteries. Voltage is just a measure of potential, so current would want to go from the batteries back to the charger in your case. Right?
ETA: Think of it like trying to pour water into your bathroom sink to fill up the elevated water tank across the street.
ETA: Think of it like trying to pour water into your bathroom sink to fill up the elevated water tank across the street.
This post was edited on 10/22/15 at 3:06 pm
Posted on 10/22/15 at 3:21 pm to baybeefeetz
short answer no.
long answer, your charger is outputting 12 volts. 4 12V batteries in series is 48V like you said therefore you can not charge them that way. In theory, you could put them in parallel to charge them all at once. Practically this probably won't work because your charger won't have the current capacity to charge all 4 batteries at once.
you probably wouldn't damage the charger if you have tried to charge them, because most likely the charger has a diode blocking higher voltages from driving back into the charger.
Just use the charge as it's intended and all will be ok.
long answer, your charger is outputting 12 volts. 4 12V batteries in series is 48V like you said therefore you can not charge them that way. In theory, you could put them in parallel to charge them all at once. Practically this probably won't work because your charger won't have the current capacity to charge all 4 batteries at once.
you probably wouldn't damage the charger if you have tried to charge them, because most likely the charger has a diode blocking higher voltages from driving back into the charger.
Just use the charge as it's intended and all will be ok.
Posted on 10/22/15 at 3:29 pm to baybeefeetz
sure can
it will just charge slower
the pos on one end and the neg at the opposite end of the series
LINK
it will just charge slower
the pos on one end and the neg at the opposite end of the series
LINK
This post was edited on 10/22/15 at 3:38 pm
Posted on 10/22/15 at 3:31 pm to baybeefeetz
You would need to charge them one at a time, however, I don't think you would need to disconnect the series to do it.
With golf carts, when you convert a 36v system to a 48v system, you have to get a new charger. If you go from 4 12v to 6 8v batteries, the total is still 48v, so no change is needed to the charger.
With golf carts, when you convert a 36v system to a 48v system, you have to get a new charger. If you go from 4 12v to 6 8v batteries, the total is still 48v, so no change is needed to the charger.
Posted on 10/23/15 at 1:36 am to baybeefeetz
Most car chargers shut off at 14.8V nowadays. Get a golf cart charger if you can't separate them
Posted on 10/23/15 at 9:04 am to baybeefeetz
Buy you a 48V scooter charger off of ebay for about $20.00 and splice the appropriate connector onto it. I converted my son's Razor dirtbike from 24V to 48V (4-12V batteries)and this method works great for charging it.
This post was edited on 10/23/15 at 9:06 am
Posted on 10/23/15 at 12:27 pm to baybeefeetz
Just hook them in parallel to charge. You're only going to be putting 3V on each battery in series, so even if it does work it will take a while and may not give it a healthy full charge.
Posted on 10/24/15 at 12:03 pm to TexasTiger01
quote:
I converted my son's Razor dirtbike from 24V to 48V (4-12V batteries)and this method works great for charging it.
That's awesome. I bet it was a lot faster. I've known people to tinker with Power Wheels, but not a battery two wheeler.
This post was edited on 10/24/15 at 12:04 pm
Posted on 10/24/15 at 12:36 pm to Napoleon
Yea, it's way faster. I modified all of his Power Wheels when he was younger also. Started out as an MX500, now it's an MX800 ;)
Went to a 36V 800Amp motor in place of the 24V 500amp motor. Overvolting it with 48V through a 48V controller. Also had a custom back sprocket cut for it to improve bottom end power. 21mph with me on it (165lbs.)
Went to a 36V 800Amp motor in place of the 24V 500amp motor. Overvolting it with 48V through a 48V controller. Also had a custom back sprocket cut for it to improve bottom end power. 21mph with me on it (165lbs.)
Posted on 10/24/15 at 1:27 pm to TexasTiger01
Father of the year?
Posted on 10/24/15 at 1:31 pm to Hammertime
My mother vetoed every attempt at getting me a dirt bike as a kid. So I became a computer nerd shut-in.
Posted on 10/24/15 at 1:52 pm to ILikeLSUToo
Ditto, so I raced regular bikes and rode my buddy's dirt bikes. Who knows what could've been? Maybe, just maybe, I would've ended up being the next Jeremy McGrath
Posted on 10/24/15 at 4:13 pm to baybeefeetz
220...221....whatever it takes.
Posted on 10/27/15 at 6:21 am to TexasTiger01
quote:
21mph with me on it (165lbs.)
Riight
Posted on 10/27/15 at 8:32 am to pioneerbasketball
Posted on 10/27/15 at 3:58 pm to baybeefeetz
If you have 4 Ea. 12 Volt batteries hooked in series, you can charge each battery individually with a 12 volt charger without disconnecting any cables.
Page 1 of 1
Popular
Back to top
Follow TigerDroppings for LSU Football News