anyone run 2s n 3s series together?

[superek4]

i have a friend whos going to run a caster truggy with 2s & 3s series to get 5s. I told him its not a good idea.

either get 2000kv with 4s

or 1350kv with 6s

the weight of 2 batts is different also. Any advise on this?

[Arct1k]

Its fine... Nothing wrong with 5s just has to make sure batteries are of same type and age...

Putting the 2s on motor side would probably balance the truck

[lincpimp]

Yeah, as long as the packs are the same age and spec he will be fine. I like 5s for buggies, good mix of power and less amp draw than 4s.

[Patrick]

Nothing wrong with using 2s and 3s together. That was my main battery setup for about a year, until they decided to bring in a 4s limit where I race.
The 3s pack will only be ~100 - 150 grams heavier, so just put in on the lighter side of the car and the balance should be pretty good.

[BrianG]

Agreed. After all, putting any combintation in series is no different than how lipos are wired internally. You could put a 1s pack in series with a 4s pack if you wanted. As long as the series packs are charged/balanced and used together, and have the same amount and type of use, it does not matter in the slightest.

I'm thinking of using 2 x 2S packs I've been given, in series also.

Do they need to be connected in series when charged/balanced and treated basically as a 4S pack, or should they be OK to charge/balance seperately as a 2S each? Which is better?

[BrianG]

Doesn't really matter as long as they are both charged the same amount. However, charging seperately requires two chargers/balancers, or double the time if using a single charger.

[fastbaja5b]

I run a 2s and 3s in my Savage Flux, all good!