So yesterday I went past 300 miles running on lithium batteries, not bad! With the old Pb-Acid, I probably drove the car a total of maybe 60 miles.
Things are going well, I upped the amp-limit on the Synkro to 500 this morning. I didn't really push it too hard on the way to work, I think I only got up to 350 amps. It scoots along well. One problem though- the motor coupling is starting to grind a bit. I used a lovejoy coupling, and I'm afraid the plastic 'spider' is wearing out. I had this happen a while ago (when I had the lead-acid batteries), the spider was too soft so I replaced it with a hard nylon spider. Maybe not hard enough??
So to follow up on my last post... I drove 22 miles, then put the car on the charger, and I plugged in my watt-meter so that I could see how much juice went back in. It took about 7kWh to fill up. I'm not sure, but I think our cost per kWh is right around $.08. So, $.56 to fill back up. Or about 2-1/2 cents per mile!
Last note- I'm thinking of transferring the electric components to my '64 Bug this winter. The bug is in alot better shape, I love driving it around, it's the ultimate people's car, and I can buy a reliable coupling that will retain the clutch. I've found that I really wish I had a clutch! Poor Plankton.
Plankton's current specs
Plankton's Current Specs:
Motor: 9" Series DC, refurbished by Jim Husted in Redmond, OR.
Batteries: 35 CALB LiFePo4 cells (115.5V nominal pack voltage)
Charger: Elcon PFC1500, so far only charging from house mains 110-120 AC.
Pedal: Ford Ranger TPS
-12V Pb-Acid auxiliary battery for car electrical (blinkers, lights, etc.)
-Generic (??) vacuum pump for brake assist (no power steering)