| Owner | Carl Ervin |
|---|---|
| Location | Waco, Texas US map |
| | |
| Vehicle | 1992 Sears Craftsman 12.5 Hp 38" cut 5 speed lawn tractor |
| Motor | Briggs and Stratton ETEK Permanent Magnet DC 8 HP continuous, 15 Hp max, 3450 rpm at 48 volts |
| Drivetrain | original 5 speed manual clutch |
| Controller | no controller |
| Batteries | 4 Power Sonic PS-121100, 12.00 Volt, Lead-Acid, Gel 110 Ah |
| System Voltage | 48 Volts |
| Charger | Soneil 48V battery defender, smart charger, 3.5 Amp |
| Heater | none |
| DC/DC Converter | none |
| Instrumentation | LCD voltmeter and LCD Ammeter |
| Seating Capacity | 1 adult |
| Curb Weight | 400 Pounds (181 Kilograms) The battery pack added 270 pounds to the tractor |
| Tires | standard turf saver tires |
| Conversion Time | 1 week |
| Conversion Cost | $1300 |
| Additional Features | Full safety interlocks were retained in the system . Three PowerCheq modules are attached to battery pack to keep it balanced. |
| Mower pulls about 5 amps in neutral, 15 amps in normal mowing speed(#2), 70-125 amps in average-to-high grass, (mower deck engaged). It is fused at 250 Amps, motor max is 300 amps. Cuts high grass better now than when it was a 12.5 Hp gasser. I have a 120' by 120' lot, 2/3 of which is mowable, I have mowed it twice on a charge and the battery pack is still at 42V, 36V is minimum voltage allowed . As of late, I am recharging it using solar panels, so it has become a "zero emission vehicle" I purchased two of the 45 Watt solar kits from harbor freight, with a separately purchased 10Amp charge controller, I can recharge in about 6 days. After two seasons still running strong, has so much torque it makes the mowing belt protest in high grass! | |
Craftsman
“Green Machine (ZEV)”
Last Updated 12-14-2007
Copyright © 1997-2009 by Mike Chancey