hobby king 3c lipo's cheap

[Odd-M]

I've run two of these in 30C with brushed motors and they work ok. I've experienced one thing though, if I measure voltage on each cell there will be a lot of difference between them. I've seen as much as 0.5V when run to lipo cut. I also got a third but it had a dead cell when I got it. Given the price I'd guess this is just what one can expect. HK customer support doesn't exactly live up to the standard set by RCC vendors either. Win some, loose some..

[StomperCrawler]

Originally Posted by Odd-M

I've run two of these in 30C with brushed motors and they work ok. I've experienced one thing though, if I measure voltage on each cell there will be a lot of difference between them. I've seen as much as 0.5V when run to lipo cut. I also got a third but it had a dead cell when I got it. Given the price I'd guess this is just what one can expect. HK customer support doesn't exactly live up to the standard set by RCC vendors either. Win some, loose some..

Do you always balance charge them? I know it takes longer but it does save money on dead batteries... unless of course they come from the factory that way.

[Odd-M]

Yes I allways charge with balance and never with more than 1C. In my opinion this is due to differece between cells. I've got several other lipo from HK but never seen this difference with them. They are all ok lipos but I'm not in to that Nano-hype. Moving over to Gens Ace when these are shot.

[lilws6]

mine were supposed to show up Saturday and they're sitting at the post office grr... probably see them Monday.

[Meatwad]

Originally Posted by Hpi-guy

No the OP says 2200 mah 3c and I thought that's sounded really low for a C rating


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It's a fair assumption that he means 3s as a description of the amount of cells rather than the C rating. There are no packs below 10c afaik.

Not sure why but some use the 'c' moniker instead of the more common 's' for number of cells.

[StomperCrawler]

Originally Posted by Odd-M

Yes I allways charge with balance and never with more than 1C. In my opinion this is due to differece between cells. I've got several other lipo from HK but never seen this difference with them. They are all ok lipos but I'm not in to that Nano-hype. Moving over to Gens Ace when these are shot.

Well done. Makes sense about the difference in cells with no matching as that takes time and money.

[lilws6]

I spell Cell with a C not an S lol I forget that lipo's have C ratings

[Meatwad]

Originally Posted by lilws6

I spell Cell with a C not an S lol I forget that lipo's have C ratings

Never understood why whomever came up with the standard for lipos wasn't thinking the same thing, especially after coming from 'cells' of nimh/nicad.

Either way 'S' denotes the count of cells, and 'C' denotes the rate of discharge.

[lilws6]

That's correct I just forget once and awhile lol on that not my batteries showed up today. Have to swap the plugs to my deans yet but maybe Wednesday i'll get to that ;)

[Olle P]

Originally Posted by Meatwad

Either way 'S' denotes the count of cells, and 'C' denotes the rate of discharge.

Just to be nitpicky:
S denotes number of cells in Series. (Can be two or more in parallel as well.)
C denotes "times (nominal) Capacity"

[6sharky9]

Gens Ace rules all..thanks for looking.

[StomperCrawler]

Originally Posted by 6sharky9

Gens Ace rules all..thanks for looking.

How much does a 3s 20c 2,200mah gens ace cost?

[Johnnysplits]

Originally Posted by d-fly

Just ordered two for a kyosho snow blizzard. Hopefully run then in parallel to get more Mah so I will have more discharge.

Running two batteries in parallel won't increase the rate of discharge, it just doubles the capacity.

[Johnnysplits]

Originally Posted by StomperCrawler

How much does a 3s 20c 2,200mah gens ace cost?

I'm not sure about GensAce, but a GForce from Value Hobby with those specs is $12.99.

[Olle P]

Originally Posted by Johnnysplits

Running two batteries in parallel won't increase the rate of discharge, it just doubles the capacity.

You're correct it won't increase the rate, but it will double the available current since 20C of 6Ah is twice as much as 20C of 3Ah.

[Meatwad]

Originally Posted by Olle P

Just to be nitpicky:
S denotes number of cells in Series. (Can be two or more in parallel as well.)
C denotes "times (nominal) Capacity"

Nitpicky... Eh, it's correct. Confusing for a noob... Quite possibly. The understanding of capacity can be misinterpreted.

[d-fly]

Originally Posted by Johnnysplits

Running two batteries in parallel won't increase the rate of discharge, it just doubles the capacity.

If I have one 2200 mah battery at 20c I got 44amps.

If I have 2 x 2200 mah batteries at 20c will I not have 88 amps

So with a larger capacity I have more amps available.

This is why with a high mah battery you can have a lower C or discharge rate.


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[d-fly]

Originally Posted by Olle P

You're correct it won't increase the rate, but it will double the available current since 20C of 6Ah is twice as much as 20C of 3Ah.

Thanks for explaining. Maybe I wasn't clear.


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