batteries for racing in p limited sport hydro class

[jerry123]

I will be racing in p limited stock class and need to order batteries that won't break the bank.

Thanks. Jerry

[longballlumber]

https://www.roaringtopusa.com/

[TheShaughnessy]

https://hobbyking.com/en_us/zippy-co...lipo-pack.html you just missed a big sale though, they were 27. I'm on my second season with these guys. Numbers look good and seem to keep up with more expensive brands.

https://hobbyking.com/en_us/turnigy-...case-pack.html . For the price these are hard to beat. I'd snap some up before the price changes again. add a pack of am-1005 to your order. Discharge curve doesn't look much different from other batteries. Above 14.8v for the first minute.

https://www.roaringtopusa.com/70c-55...is-70c-5500-2s. Those would be the ones i'd get if you want RT. I like to steer clear of 2s2p packs personally. In my experience smaller amp hour packs have higher resistance values. Paralleling will drop the resistance but I still don't see how you go about balancing the individual cells.

[meangenesracing]

right here my friend on ose. revoelectric

[jerry123]

Thanks for the info. Prices are better than I could ever imagined. I want to race at namba nats p limited class. I see most people run 4s soft pack. Is there much difference for racing between 2s and 4s hard or soft pks? What c rating should I get?

Thanks for your help!!! Jerry

[jerry123]

Thanks for the info.

[jerry123]

Thanks for the info. I'm in western NY, maybe we could get together and run sometime?


Jerry

[TRUCKPULL]

Jerry

The hard packs usually only come with 4mm plugs.
A 4mm plug is only good for about 80Amps.
That is why most racers use soft packs with large wires and a minimum of 5.5mm plugs.

I guess it depends on your hull.
are you going to run.
2 - 2S pack in series, 1 - 4s pack, or 2 - 4s packs in parallel??

IMPBA FE Nat's in MI. June 27 - 30
Northern Nat's Gas. Nitro, and FE in AUG. (50 Point park -between St. Catharines and Hamilton)

I think the last time that we raced together was in Toronto

Larry

[jerry123]

Hi Larry, what would you recommend 2s series or 4s parallel? What c rating? What mah? Will be running namba p spec/limited sport hydro and cat class. Both boats are pro boats.


Thanks. Jerry

[TRUCKPULL]

Hello Jerry
For the Spec class Sport Hydro I run -two 4S - 4000mAh packs in parallel. 70c to 140c
For the cat for 6 lap racing, same batteries as Sport Hydro - two 4S - 4000mAh packs in parallel. 70c to 140c

For Namba spec Offshore (4 min. race plus mill) -- two 4s - 5000 mAh packs in parallel. 70c to 140c

I get my batteries here as do a lot of racers;

https://www.mojoracingproducts.com/collections/graphene-2-0-giant-power-70c-140c-lipos

Larry

[Fluid]

All the power in an FE boat is in the packs. With the motor prescribed there is little the racer can do to obtain an applied power edge. Buying the “best” packs with low IR at the actual amp draw we use (most battery tests are performed at low amps compared to what even a Limited boat draws) and temp can help. Just because lots of sport boaters like a certain brand/type doesn’t make it the best race pack. Even plenty of racers I know make choices based on price, popularity, or on battery tests which don’t replicate how we actually use them. These aren’t fan batteries. If you are traveling to the Nats and want to race to win, saving $50 on batteries seems pretty foolish.

Another thought. Better packs can mean a small speed/acceleration advantage, but can the average racer take advantage? Maybe, but poor driving can negate any small advantage in speed.


.

[dethow]

Jerry,
If these will fit in your boat dimensions... these are about the best batteries you can get.
Plus a great price for this barley used pair at $75 shipped to you.
Many...many racers use these batteries in both cat and mono for both P-Limited and Open P classes.
Like I said... if these will fit in your hydro. These are the best you'll get for the money.

https://forums.offshoreelectrics.com...Lipo-Batteries

[jerry123]

Thanks but I can"t go over 4000 may for stock class.

[jerry123]

https://hobbyking.com/en_us/turnigy-...ack-xt-90.html

Larry, Would this battery be OK. Says nothing about soft or hard pk.

[rol243]

that Zippy is a soft pack. hard packs look like there in a sealed box and also have 3 individual lead sockets for the 2 x power leads to plug into. if you don,t buy the good batts from O.S.E. have a look at [ BangGood.com ] for ZopPower good priced lipos.