carkillaii

iTrader: (2)

Great info guys I just orderd a VXR LTK-311300 Its good to know the do's and don'ts of li-po


Carl G when you coming back out to Vegas?

syndr0me

iTrader: (32)

Where'd you find the VXR for sale?

carkillaii

iTrader: (2)

Syn you have a pm

floodo1

wow you guys are using some large capacity packs.
Ive been using a 750mah in my Helios. IIRC its something like 45 mins of run time. IDK it doesnt matter much cuz i just charge it every time or 2 that i race.
The main advantage is that its SUPER lightweight.

PS- I use VXR pack, idk about any foam holster, also no balancing plug. Its just a 3 cell pack with a j plug. it did come with 2 pieces of foam, but its not like foam is hard to find
That said the pack has worked great for me, and i'm sure vxr is a reliable brand.

TEM

Tonight I put the cells(2 parallel packs of 3s1p 640mah kokams to make 1280mah) into my radio (R1Pro SPCM) They register at 12.4v on the radio after a charge. The RC transmitters we use for car draw approx 200mah give or take which is well in range of the lipos. Bench test thumbs up!, Track test this weekend!...

wallyedmonds

i know ppl that do this and the only problem they seem to have is they forget to charge the thing cuz it takes so long to discharge
i dont bother i just spend the money on tires and fancy soldering irons

TEM

These lipos that fit in the given space can give you anywhere from a few hours to 10 hours of use typical. I would probably just plug it in after each track day or do it in between every few runs to top it off. It's another thing you get into a habit of doing. With the nicad and nimh, I always brought a low current AC adaptor to plug into the radio whenever I feel like it. This is no different. I fly with lipo and I got an orion PE for cars. Not a single lipo ESC nor novak safety but I never had issues (knock on wood). You'd be spending more time with IB's than you would Lipo!...

Fancy soldering irons; you only need 1 and maybe a 2nd if you do special things... but tires... well. it only takes the price of 1 set of tires to get a set of lipos for a radio!

MrBlack

I pull my out at around 9.6A because that is when the radio begins to beep.

A 3S LiPo of proper quality should be able to go down to 2.7V per cell or 8.1V per packs without any damage.

asw7576

I'm using Muchmore 2100 in 3PK. I play every Sunday. It last about 3 weeks before recharging.

edlan

So are these batteries a direct fit or do you have to do some modifications?

My EX-10 Helios eats up gobs of power, and the 2500 NiMH last a couple of hours, good for 2-3 race days.

Do you know what would work well with this radio?

fraz

Yeah, I use a Helios with Thunder Power 3-cell pack and it rocks. I need the light weight and extra juice for long nitro mains and have tested it well. Last big race was Vegas at the end of last year. I started at 12.3V and ran practice in the morning (~15 minutes). I qualified for crap so I ran the C-main (5 min warmup + 20 minutes) and got 2nd for the bump-up. I started the back of the B-main (5 min warmup + 40 minute main) and finished in 4th, missing the bump to the A-main by a lapAfter 1.5 hours of solid running, I was still at 12.1V.

For the setup, I took my case apart and took some small wire and soldered on to a regular male Deans plug. Then I soldered to the 2 leads behind where the stock battery contacts go and reassembled the case. Now I can plug in the Lipo or use a stock battery tray if I still want to. BTW, I don't want to anymore

Don't let the 1100mAH rating fool you. These things are way more efficient than round cells.