deep cycle battery pack

Does anybody know what parts I'd need to make a 12v rechargeable battery pack for an upcoming road trip? I also need to know where I can find deep cycle sealed lead acid batteries for this project.

I waited long enough to make a lithium ion pack, but now I changed my mind on the battery type to get 12v, and now I have no idea of what protections and electronic components I need for it.

I'l post more info on available casing later, but I'll tell you now that it's like a small blue lego briefcase from when I was little. It's about the size of a texbook and I'd like to be able to put it in a small backpack to carry around school sometimes for my windows tablet.

Update: I am available to buy any particular case, but wiring in a case can sometimes look bad, so I'd like it to store all wires internally and have a friendly look. Appearance was part of why I switched my plan from li-ion 18650s to lead acid. A block with printed volt and amp information looks better than a group of oddly sized cells. Also, no clocks.

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If you are looking for 12v rechargeable battery there are some site that you can check out like
If you're really serious about deep-cycle, you should look for Hawker Cyclon cells
leaf26 (author)  steveastrouk4 years ago
Thanks, steve. I know you helped my with my initial idea.

How many do you think I should get? For the number, what level of amperage should I get on the charger?

Also, what kind of wiring will I need and will I need any circuits?
leaf26 (author)  leaf264 years ago
I looked them up and clicked through different dimensions to fit as many as I can. I found a regular lead acid battery here:

Not counting circuits, which can still fit on top, I can fit 6 of those in my case, with room for ports. 3 batteries on each side in parallel, 2 cells in series.

I still need help with information on how to wire and charge the pack
Well the nice thing about Cyclon's is that the form allows you to put batteries into nicer packs than the slabby rectangular ones. What capacity do you WANT ?
leaf26 (author)  steveastrouk4 years ago
I want to get 10 ah if I can. If I can't, I can drop down to 8. I need it to be portable, though, and that includes weight.

Where would I attach wires to the Cyclon's?
They have tabs
leaf26 (author)  steveastrouk4 years ago
Here's the best deal I found:

I can fit 2 of these. What other parts besides the batteries and case will I need? Do I just wire it to charge and discharge ports? Which charger? What can I use to measure a % remaining power?

I now realize that lead acid is pretty heavy. What do you think?
Any 12V charger will handle them. They're going to weigh 6 pounds, not too bad in my view - and a lot cheaper than Lipo
leaf26 (author)  steveastrouk4 years ago
Please, what wires and circuits will I need?
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