Battery power for Percy

[Ajax]

I am considering converting a large scale Bachmann Percy to RC battery power but can only get about 7.5 volts of batteries inside. will this be enough to give me a reasonable driving session. Thanks Ajax

 

[Del Tapparo]

The voltage determines the speed. mah rating determines the run time. If Percy is anything like Thomas, it should run fine at 7.5V. Mine is at 14.8V, and I have to severely limit the max speed (about 50%) to keep the speed down to something realistic.

 

[Ajax]

Thanks Ross, I will quiz my friendly RC shop about the use of AAA's

 

[Ajax]

Thanks Del, It looks like I am on the way to battery power. Ajax

 

[KleineDicke]

2300 or 2500 mAh AAA batteries are grossly overrated. Those Chinese merchants play fast and loose with the milliamps. Li-Ion is the best way to get mucho milliamps in a small package, although these are usually overrated as well.

 

[Tony Walsham]

Whilst there are NiCd, NiMh and hybrid AAA & AA cells rated at 2,000 to 2,500 mah it does not mean they can reliably deliver 2.0 - 2.5 amps. That is because the cell structure has built in choke points. The cells were designed to give a small (as in about 1/2 amp) current for a long time. If you try to draw more than 1/2 amp of current from the cell it will give it, but at the cost of reducing the life of the cell in terms of how many times it can be recharged.