Electronic Scales

What kind of scales are most people using to weigh brass and bullets when sorting them by weight?

Also I would like a set that plugs into my lighter in truck or batteries so I can take to range.
I shoot a Savage smokeless ML and always need another charge or two while I'm at the range and any wind affects the balance beam type scales.

Thanks


PSE EVO 57 Lbs.
Blacked out

I have the RCBS Chargemaster 1500 combo and love it. But I don't know about an adapter for auto lighter or battery power.

A low cost power inverter (available at auto stores, or WalMart) will change 12v to 110 so you can plug in your scale in the car.