For four 6v batteries making a 24v system, can I hook a 24v trickle charger to it?

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slm9s

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Non-bike related question for you guys. I use an electric pallet jack to pull my 19' boat on a wheeled dolly 50 yards to the launch (on pavement). I put new 6v batteries in it. To extend their life, I was going to use a trickle charger in the fall/winter, as I only use the boat in the spring/summer. With the four 6v batteries hooked up to provide 24 volts, can I just buy an inexpensive 24v trickle charger and charge all 4 at once - connecting to the BIG plug that switches from the motor to the charger? I'm unsure if this will be optimal vs hooking up a 6v to each battery individually which would be a big pain.
I was thinking of something like this: https://www.amazon.com/gp/product/B0CP5QPMWZ/ref=ewc_pr_img_4?smid=AE3NZZZP3888R&psc=1

Thanks in advance.
 
Each one of your "6V" lead acid batteries is actually three 2V cells in series, the same way that a 12V car battery is six 2V cells in series. So as long as the four 6V packs have all endured the same conditions, they can be treated as a single 12S lead acid battery. If they're flooded cells, do keep an eye on them and don't let the electrolyte level drop too low.
 
Thank you for the reply Chalo.
So you are saying that I can buy a 24v trickle charger like the one I linked and connect it to the BIG plug and it will perform as intended and keep all four 6v batteries healthy over the winter?
Some models have a "desulfator" feature. Do I want that or no?
Thanks again!
 
slm9s said:
Thank you for the reply Chalo.
So you are saying that I can buy a 24v trickle charger like the one I linked and connect it to the BIG plug and it will perform as intended and keep all four 6v batteries healthy over the winter?
Click to expand...

Correct, as long as the trickle rate isn't too high for the battery.

slm9s said:
Some models have a "desulfator" feature. Do I want that or no?
Thanks again!
Click to expand...
That's some kind of voodoo/marketing hogwash/pseudoscience that I'm not fully informed on. What I can say is that lead acid batteries are very very mature tech, and if fixing them through voodoo were easy or reliable, it would be regular practice. Maybe it helps sometimes, maybe it doesn't hurt. Or maybe not.
 
The theory is very high current can dislodge sulphur that's caked onto the lead plates (to restore their surface area, and thereby restore the battery's current delivery potential) . It's plausible.
 
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