Battery Rating And Different Speeds!

[racecar 0]

Just to prove that I am blond!

We have two TT01 chassised cars (the Impreza and the Ferrari FFX!), now I am clever enough to work out that the bodyshell will not affect performance running around a tennis court. However we've just come back from the local park and we all noticed that the Impreza bodied chassis was quicker than the FFX bodied one. Both chassis have been built in the last week, both are standard (no upgrades!). The FFX runs slicks and a wide rear track, the Impreza runs treaded tyres. Now I know on my full size race car that wide slicks can actually slow a car down on the straights when compared to narrow treaded tyres, but I can't imagine that it would have the same effect on these little cars.

So I can only presume that with the Impreza chassis having a 2300 battery and the FFX one a 1400 that is where the difference is, we got kicked off the tennis courts before I could swap batteries about to see if there was a switch in performance...

Any comments appreciated!

Andrew

[ryanbored 4]

Generally speaking Higher capacity batteries will have a better 'punch'- and can sustain it's 1.2 volts (per cell) or 7.2v per pack for longer. Relitively speeking both packs you are using are fairly low capacity, so the 1400 one will trail off fairly quickly, performance wise.

[Wrc action 0]

In this case I would point it at the packs.

As to be fair the FXX should be better with aero than the Subaru due to its lower drag co-efficent.

I would advise some new packs. You can get mid spec 3000 mah packs for around 15/20 quid these days and they will do the job for you just perfect.

Cheers

Ryck

[racecar 0]

Oh well back to the shops, just goes to show that I'm still green about these things as the 2300 battery is one of two brand new batteries that I bought on New Year's eve, best wait till the eldest has saved some pocket money before we tell "mum" that we are buying some more batteries.

Might save the 1400 for when the youngest is driving the cars then he can hopefully keep better control of it..... saying that he was doing reverse flick turns with the Impreza better than the eldest was doing!

I'll have to set an Autotest circuit up for them next time we get to the tennis courts.

Andrew

[racecar 0]

Oh well spent some more money!....

The FFX was much quicker with the 2300 NiCD battery, but even though both 2300's had been charged to the correct timelength on the overnight charger they died pretty quickly, much quicker than I had imagined.

So the latest acquisitions are 2 3300 NiMH batteries and a Ansmann ACX1 Peak detect charger (cos I read it in another thread!).

So in the space of two weeks it's been two TT01 chassised kits, 1 complete servo/transmitter kit, 4 batteries, 2 chargers and 1 discharger, paint etc, repairing glue....

mind you if I spread it out over the 18 years that it has been since I bought the Wrangler then it's not to bad.... can you tell I'm an addict already who can't admit to my problem!

Andrew

[Singapore_959 18]

Hi Andrew,

sounds like you are having a good time

After about 10 cycles you should find the cells give much improved run times and good power. 4 or 5 cycles is the norm stated for this, but my experience is closer to 10 charge and discharges get them up up to reliably longer and better.

Have fun!