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02-03-2018, 06:21 PM | #1 |
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charging 2-12v batteries (non parallel/non-series using a 24v charger
I have been all over the web to answer this question. It pertains to separate non connected 12v batteries that I can charge with a 24v charger (2-10 amp). These batteries are in separate cases with the series connections somewhere in the internal wiring of a mobility scooter. I know is not the right forum for scooters but in theory seem to be a question for this thread. I want to maintain balance on the batteries. If I make a sort of bus-bar to put these two connectors on the battery cases into series would this work?. I am trying to make this make sense for electrical gurus on this forum.
Last edited by SuperChief; 02-03-2018 at 09:38 PM. |
02-04-2018, 02:22 AM | #2 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
I'll admit, I know nothing about scooters, but if the series connections are somewhere in the internal wiring, I would guess that maybe some circuits use 12 volts and some use 24 volts. I would NOT try to charge the batteries with a 24 volt charger without knowing exactly how things are connected. The whole thing could go up in smoke. I would suggest that if you have to use a 24 V charger, disconnect them from the scooter, jumper them in series and charge them. A big PITA, but safer.
Just my 2 cents worth. (As we no longer have pennies in Canada, make it my nickles worth)
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02-04-2018, 02:01 PM | #3 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
I agree Burb, there are not enough details to make a recommendation. There must be a common charging point on the 24 volt series batteries,and if they are separated, the 12 volt single batteries as well. Like you said, pulling the cables of the batteries and charging them individually is the safest bet. He'd have to use a 12 volt charger or wire the two batteries in series to use the 24 volt charger.
He could possibly set up a separate circuit with switching that would connect the batteries in series and then charge them with the 24 volt charger but I couldn't say how to do that without seeing the circuit. It might be more complicated than it's worth.
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02-04-2018, 05:10 PM | #4 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
Thanks for putting my thoughts in order. They are removable battery cases with 50A Anderson connectors built in. each is 12v. For balancing purposes ----off board---- I would like to keep them balanced and was wondering could I make a separate buss bar /pos/ neg ///buss bar///pos /neg/ to make a 24V charging station wired to the two Anderson in the in safe order. Thanks for helping me to express how they will be hooked up off-board
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02-04-2018, 06:46 PM | #5 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
if you charge them in parallel you can use a 12v charger...
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02-04-2018, 06:48 PM | #6 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
if you want to charge in series with a 24v charger you need this
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
02-04-2018, 07:03 PM | #7 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
I don't believe that charging batteries in series is the best choice. If you're going to charge the batteries off board anyway, charge them individually or charge them in parallel with a 12V charger if they are the same capacity and same age.
There are battery balancers you can buy in order to charge them, but I think it's likely to be pseudo-science, or more expensive than a 12V charger. I'm not convinced there is really such a thing as balancing batteries for household or vehicle applications using plain lead-acid batteries. Did the original charging system built into the scooter fail, and that is why you're trying to do something different? |
02-04-2018, 08:31 PM | #8 | |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
Quote:
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02-04-2018, 08:36 PM | #9 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
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02-04-2018, 08:46 PM | #10 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
If the batteries are hooked in series then the only way to charge them is with a 24 volt charger.
If the 2 batteries are 12 volts each and you want to charge them each seperate then you can with 2 -12 volt chargers. Example: A golf cart has 6 - 6 volt batteries in it for a 36 volt cart total. You can charge 2 batteries at a time in the cart with a 12 volt charger without unhooking anything. You can charge 4 of the 6 with a 24 volt charger as well.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
02-04-2018, 09:40 PM | #11 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
Then making a separate charging bar would be ok because it now puts everything in series. Thanks for the inputs.
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02-05-2018, 10:00 PM | #12 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
Not really any problem to just put a cable between the 2 batteries from the - side of one to the + side of the other then hook the charger up to the other two terminals and letter charge. No need for a bus bar.
This is a break down of how many pairs of 12 volts there are in a cart rated @ 36 volts total.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
02-06-2018, 03:06 AM | #13 |
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Re: charging 2-12v batteries (non parallel/non-series using a 24v charger
Got it....Thanks to all for reading and replying, I mention in my posts that I group all and make my own DIY files and review them often. Thanks again to all...
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