I have a brief and seemingly dumb question.

I've decided to go with the saddle battery setup on my b44.3 to keep weight more balanced.

What would be the best way to go? 2, 2s wired parallel or 2, 1s wired in series?

Of course all I've seen for far is the Reedy Wolf pack for the 1s route and many options for the 2s route, any benefits to either way other than the 2S route being way more mAh then anyone should ever need.

Also I've been using the 5mm bullet connectors, is another plug "better"? I've read on certain batteries about the battery melting around the insert, but I shouldn't be doing anything for that to happen.

Series vs parallel is kind of moot once you look at how the packs are built. They all have multiple cells in them and they're just wired internally as series or parallel. You'll effectively end up with the same configuration anyway.

Not sure because I haven't raced with saddle packs personally, but wouldn't the wiring for series be more efficient? Probably not a big deal for mod, but if I was running stock, then I would try to go with the least amount of wiring possible to reduce weight... an extra 5-10g of wiring can also effect the center of gravity too... probably not a big deal either way, but a few grams here and there can add up.

I believe what hes meaning is the difference in the 1s and 2s is that the 1s is internally wired parallel, where as the 2s is internally wired in series, while wiring externally you'd wire the 1s in series and the 2s parallel. Basically ending up with the exact same thing.

Maybe I'm missing something, but wiring in series would be 2 long wires plus 1 short jumper between the packs. When wiring for parallel, you'd have 4 long wires = 4 / 2.5 = 60% more wiring than is necessary = less efficient, plus you'll also need to add the extra weight for an extra connector which can also contribute to added resistance by adding more connections to the circuit.

I would probably go with a series setup if I had the choice.

You could do parallel with 2 long plus 2 short wires, which would be marginally heavier than series but fairly negligible. You're more likely to see a difference by picking a different pack, and as mentioned by the OP there's more options going the series route. So I'd go series based purely on availability.

Well as far as weight is concerned, running 2 saddle vs 1 shorty adds a bit of weight as it is. So wire weight doesn't really strike a concern for me, especially being within 1/4oz left to right on saddle and over 100g heavier on one side running 1 shorty. So cost of weight for the benefit of balance was my concern. Traction roll is a bit of a concern @ my usual track if you get hooked up good!

Unfortunately, availability for me steers to the parallel route with 2 2s.

I haven't checked my LHS just yet which may open the door, but by looking online and only seeing 1 or 2 available 1s saddle pack setups it looks pretty grim that they'll have much to choose from.

But as i'm typing this I thought of an idea that i'm not sure why it hasn't crossed my mind yet... I could calculate balance with running a single 2s saddle pack since that opens room for electronics as well as allows placement on the left or right side of the chassis vs only the right side for shorty lipo.

Are you looking at single shorty packs and planning on buying 2 to do saddle? Lots of companies already sell specific saddle packs which need to be wired in a series arrangement. You may want to check the rules where you race as running two standard shorties gives a much larger battery dimension than a typical saddle, and dimensions are usually regulated.

Nevermind. The labels on the saddles confused me thinking each was 7.4v where as its actually for the pair in series