Originally Posted by 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?
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 lap
After 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.