94eg!

iTrader: (17)

Interesting. I didn't know you could balance cells in parallel.

BTW: Here's the specs for all of GP's current lipos:
http://www.gpbatteries.com/html/techinfo/LithPly.asp

Cpt.America

iTrader: (52)

so which cell is in their 4300?

a_main_attendee

iTrader: (2)

GP cells where the cells to have a while back ago (during the 3300 era) and they have somewhat fell off of the map ever since EP and IB started pumping out the 4200's.

Cpt.America

iTrader: (52)

hey A-main... I took a 6 year break or so from RC.. and when I left, GP 3300s were it. Now looking around, I see there was a period of time where sedan guys went from 6 cell, to 5. What is taht about? Woudlnt that decrease voltage and make the cars all slower? What did I miss there?

a_main_attendee

iTrader: (2)

That's more or less a European thing, but the idea was to limit the speeds in the modified classes as well as to limit the stress on electronics and whatnot due to the stress of running 7.2 volts vs. 6. It basically deminished the raw, nasty rip that mod cars had, yet they where still plenty fast. As far as i know, that was only for the mod class.

Cpt.America

iTrader: (52)

I see i see.. thanks

94eg!

iTrader: (17)

I don't think it's any of those cells listed. They must have developed something new to keep up with the high discharge current. I suppose it would have to sustain 70amp of continuous discharge to reach their claimed 35c rating (for a 2S2P pack).

I just figured it was good for people to know they actually do produce Lipo cells...

Cpt.America

iTrader: (52)

Yep... I guess we have to assume that the cells inside their lipo pack are actually GP cells. It doesn't seem very "gp" like to outsource the cells in the pack. I think im going to try them out.

JR007

Has anyone used these batteries? How do they perform?

gtfour93

iTrader: (22)

I was going to get this when shopping for batteries, but went with Intellect 5000mAh instead.

tandman

iTrader: (7)

I used the 4300's all summer and they were great for the price. I won a regional event and some club races with those packs....they are off a bit performance wist to the Thunder Power packs that I am using now but the GP packs are half the price....definately worth the $$

rhysdejager

i bought one of these, i charged it for the first time and only got 3200mah in it
charged at 3.2 amps

it got half why then started charging really slow

any ideas?

JR007

Ith either already had charge in it, so you were topping it up only, or your charger is set to cut off at a pre-determined voltage.
I have 2 of these packs. They are the most solid and reliable packs I have used in RC racing.

rhysdejager

ahhh thank you

my speedy cuts it off at 3.0v how many mah do you think would be left in it?

thanks for the reply btw

JR007

It's hard to say, as each pack (between and within brands) will have a slightly difference voltage curve. I have never run my packs more than 3000mAh as I only race, and never more than that out by the end of a race.
I'd say most packs should be able to deliver a good 80% of the capacity before a drop off, but that's only my guess based on what i've read.