FYI: I changed by setup so it has the following battery dimensions now:
Width: 2" / 50mm
Height: 2.5" / 64mm to be reasonable, but can go higher if need be.
Length: 5.75" / 147mm
I am still eyeballing those EMoli and/or M1 cells. I think I asked the question before if it was OK to create two 5s packs, and then wire them in parallel on the truck, or if it was better to run five sets of 2p, and then wire those in series. I believe I was told the latter was better (5 sets of 2p) for balancing purposes, but then I read the following over at
aircraft-world.com (BTW: that page has some pretty nice info):
Quote:
Should I use a pre-asssembled "unit" pack or wired individual packs?
We recommend that individual packs be harnessed or wired together, in series or parallel, whenever you need to increase voltage or capacity. Compared to a single "unit" pack, harnessed packs have these advantages:
1) Easy to check, easy to balance, easy and safe to charge: Two packs harnessed in parallel - for example 2200-3S to achieve a 3S2P, 11.1V 4400mAh pack - can be disconnected at any time, so you retain the ability to check each individual cell through the multi-connectors, and to charge safely by separating the packs and using PCM Guard or Balancer devices. If you have a "hardwired" parallel pack in a single unit, you don't have the ability to clearly diagnose a single weak cell in the pack.
2) Easy to separate for use as a single pack: If you decide to retire that big model, you can instantly revert your 3S2P pack to a pair of 3S packs, for use in a smaller model.
3) Easy to re-wire. Need to convert that 3S2P pack into 6S? With a harness, it's a snap. A hardwired pack would likely be damaged in the arduous job of re-soldering the individual cells, as required in such a conversion.
4) Easy to arrange. Different models require different pack shapes to fit and balance the model. Harnessed packs allow you to choose the optimal arrangement - front-to-back (inline), side-by-side, or whatever you need.
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If I am reading this correctly, it says to create two 5s packs and use them in parallel, but charge seperately?? That makes sense to me, and as long as each pack is balanced to exactly 4.2v/cell, it should be OK right? The reason why this would work well for me is I can buy one Dewalt 36v pack (contains 10cells) and rearrange them for two packs of 5s1p. This would allow me to use them as 5s2p in the truck, but use the factory charger (with a little modding of course) wired as 10s1p. Or am I really off base on this?