Thread: Discussion Lipos for auto racing use
View Single Post
Old Aug 14, 2012, 09:00 PM
Jwmflying14 is offline
Find More Posts by Jwmflying14
Registered User
United States, CA, Lompoc
Joined Nov 2010
4,228 Posts
Lipos for auto racing use

Yes, you read it right.

Long story short I race karts. No not your average pay $10 and go around the track go kart. We are talking advaced 120mph+ karts. The kind that compare closer to F1 than any other vehicle in the world.... Anyways enough about that.

I race in a class of Rotax 125cc karts. They have digital ignition powered by a 2.5 amp hours lead battery which weighs 6 pounds. Doing some quick calculations I could either have a Lipo battery that weighs 10oz, and the same capacity, or a Lipo battery of the same weight with 25ah!

The lead battery is 12v so my only option would be to use a 4s battery with a voltage regulator! These are very common and used all the time such as in DLG or for RX packs. My problem is I need a voltage regulator, that can regulate at 12volts but can still put out up to 15amps.. I assume that's plenty, as I have never really checked the current used... I assume realistically quite a bit less as the lead battery lasts for about 3-4 hours of driving.....

So any help either creating my own, and or where I can purchase a voltage regulator?

I have pondered the idea of a simple resistor... But would like something that would more reliably stay at 12.5 volts
Jwmflying14 is offline Find More Posts by Jwmflying14
Reply With Quote