tq_racing

iTrader: (67)

i have 2 2s lipos. can i make that into a 4s lipo? all the numbers match up. if so how do i do it?

thanks

minisprint29

iTrader: (14)

Just make a y conector. pos on oneconector and neg on another conector then a wire between the conectors.

zrxrxr

iTrader: (7)

This will work you just need to change the connecters to fit your choosing.

http://www.google.com/products/catal...CCkQ8wIwBDgA#p

Or make your own with the same layout.

tq_racing

iTrader: (67)

so the 2 batteries would connect into the ones with the red and black wires then the all black one would connect to the esc?

and waht about the balencer wires?

Dave H

No on the both blacks to the esc. Take a look at this:

http://scriptasylum.com/rc_speed/_pi...wiring_2.gif~0

whitrzac

iTrader: (97)

if you have to ask, there is a 99% chance that you shouldn't try until you have more experience with lipos.

tq_racing

iTrader: (67)

that is what i thought just wasnt 100% sure. thanks

tq_racing

iTrader: (67)

what do i do about the balancing wires? how do i turn that so it reads a 4s? do i need to buy a 4s end?

michaelpaul74

iTrader: (5)

I wouldn't do that. I just charge and balance each 2s battery individually. Just make sure you are using the same brand, mah, and C rated battery when running them together. If you mix different batteries you are asking for trouble.

makaluch

iTrader: (36)

What charger are you using?

I use a Thunder Power 1010C and a TP210 balancer with an adapter. I plug both balance plugs into the adapter using the 4S port on the balancer. The adapter does the "thinking" and tells the balancer that it's 4S. Then, use the Y-harness and plug the pair into the charger as 4S.

Paired packs should be balanced and charged together (same exact packs). You'll kill the weaker pack in a hurry if you don't.

Duster_360

iTrader: (21)

Yoiu can buy a serial harness for charging a pr of 2S in series -

http://www.greathobbies.com/producti...od_id=TGHX1000

In series there is a potential to short the lipos thru the connected balance wires. You have to know what you're doing. Its easier and safer to charge them in parallel. Get a Paraboard for the type of balance connector you have and just plug in, setup and charge.

http://epbuddy.com/index.php?main_pa...products_id=84


I charge multiple lipos in parallel.

tq_racing

iTrader: (67)

so with that board can you charge different cell packs? or do they all have to be like 2s? also do they have to be the same rated packs? or can you have like a 5000 and a 5800?

if so then ill be buying that

Duster_360

iTrader: (21)

Charging in parallel, they have to have the same cell count, they can be diff capacities (no extremes like a 2S 8000mah and a 2S 800mah). I charge two and three 2S lipos at once, all 5000mah.

The lipos need to be close to each other in voltage before you hook them up since they equalize thru the board when connected.


I think its great since I have 3 diff RCs that use two lipos at the same time. No more charging one after another and the waiting.

tq_racing

iTrader: (67)

alright so i have my 2s 5000 and my saddel packs that are 2s 5700. would that work? also would i still charge them at 5 amps or tone it down?

gottabaja

iTrader: (3)

The batteries should all really be the same, a 5700mah and a 5000mah may seem a small amount but it only takes one cell to go bad. And potentialy cause alot of wasted money.

I use some venom 40c 5000mah, charge and balance seperatly, the batteries are not expensive and venom has a decent warranty. Never a issue on performance, plus if one cell goes bad your not going to be buying a 200.00 4s it will just be a 70.00 2s that most LHS carry.
Just my opinion,