E-Bike System

[brian015]

A very simple, cheap solution would be a lipo low voltage alarm/buzzer like this:

http://www.ebay.com/itm/1S-6S-LiPo-B...item43aaa3aac4

The fact that you (I mean your son) is riding it would mean you (he) would definitely hear it (not like a rc vehicle at a great distance) - so it should be very reliable.

Anyway, just a thought.

[mistercrash]

Nice device, cheap, effective and simple. Thanks. But I don't get how they say it can be used with LiFe batteries if it starts screaming at the 3.3V mark (3.3V per cell I presume). But for lipo, it's looks nice.

[bruce750i]

Originally Posted by mistercrash

Nice device, cheap, effective and simple. Thanks. But I don't get how they say it can be used with LiFe batteries if it starts screaming at the 3.3V mark (3.3V per cell I presume). But for lipo, it's looks nice.

I own a few of those LVA's. They are adjustable by increments of .10 volts. 3.0-3.8 alarm voltage range per cell IIRC. Loud little suckers too.

[mistercrash]

Originally Posted by bruce750i

I own a few of those LVA's. They are adjustable by increments of .10 volts. 3.0-3.8 alarm voltage range per cell IIRC. Loud little suckers too.

I didn't know they were adjustable. That is cool. I'll see how good he is with it and decide then if I'll upgrade the thing with lithium. I'm scratching the MMM idea, better to keep it safe for the boy. Thanks guys.