Battery Power

Battery power?

I have a go-kart with 8″ rims. It weighs 300 lbs without the motor. If I wanted to turn this into an EV, how powerful of an electric motor would I need? Would 7 hp be enough? I want it to be really powerful. How many car batteries would I need to power the motor for 3 hours considering I will be driving it pretty fast most of the time.

I think 7HP is much more than you need. 1HP is probably more appropriate. You’re starting at a major disadvantage. 300 lbs without motor, battery, or driver is very heavy for an EV. You’ll never get enough battery into it, especially with standard lead-acid car batteries. You don’t want those anyway, you want at least deep discharge RV/marine batteries, or a much more modern chemistry. See the first reference and look around it. The commute car is very high performance with a very good range. But it costs in the ten-twenty thousand dollar (US) range. For the ultimate, see the second reference. It’s real, I know the people. But the price tag for the first generation is US $100,000.

There’s a good reason electric cars are not yet common. The enabling technology is just now being developed. With further development and volume manufacturing, the prices should drop considerably.

My son has a new electric bicycle. It’s very practical for commuting, but the cost is still around US $6000. Good range and speed. It keeps up well with expressway traffic.

If you just want to play around, get the biggest standard RV/marine battery you can, and a used auto starter motor from a junk yard. Get a few, since you’ll probably burn them out. You probably can’t afford to play around with gears or electronic motor controllers, so just gear it for its top speed of maybe 5MPH and use a very heavy duty foot switch and/or use the starter relay. It won’t be a smooth start, but it would work.

How to Power a TV using a AAA battery

Cuisinart CFO-3SS Electric Fondue Maker $36.50 Cuisinart(tm) Electric Fondue Set Now fondue is easier than ever. The stick-free Cuisinart(tm) Electric Fondue Set has a heating element built into the base of the pot and a thermostat that adjusts to a wide range of temperature settings. Consumers can prepare chocolate, cheese, broth or oil fundues in this elegant 3-quart brushed stainless pot. As always, Cuisinart makes cleanup easy. The nonstic…

Black & Decker EHC650 2-Speed Food Chopper with 3-Cup Bowl $18.78 This electric food chopper accomplishes a food processor’s principal function of chopping and mincing without having to haul out the big machine. It’s just 8 inches high and 4-3/4 inches in diameter, and its 3-cup bowl is ample for many chores in a family household and most chores in a one or two-person household. At 150 watts, the motor is powerful enough to chop or mince vegetables, fruits, herb…

Norpro Cordless Mini Mixer, 5 Piece Set $3.99 Mini hand mixer for small jobs around the kitchenIncludes 4 attachments to beat/whip, mix, blend/stir and frothGreat for making meringue, preparing eggs for recipes, blend dressing, and morePowered by 2 AA batteries (not included)Attachments dishwasher safe No longer will you need to pull out your bulky electric mixer when Norpro’s Cordless Mini Mixer will mix, froth, beat/whip and blend/stir quic…

Servicing SCAG Power Equipment Tapes 1&2 Fundamentals Electrical Hydraulics Spindles Blades Belts Bushings Bearings Battery from A to Z …

Power Pak (Battery Pak) $9.98 …

China – At the Crossroads (Teach English to Chinese Students) $9.20 Description: This Palm Treo 500V retractable car charger features a retractable wire. It’s compact size and ergonomic design makes the charger a very convenient product to use in your car. With the rapid retract button located on the top of the charger, press down to retract the full length of the cable. Palm Treo 500V Car Charger Features: Smart IC chip recognizes a fully charge…

Black & Decker AF-100-3ZP 30-Feet 0.065-Inch Line String Trimmer Replacement Spool, 3-Pack $11.50 Black & Decker String Trimmer Auto Feed System Replacement SpoolThe Black & Decker string trimmer Auto Feed System replacement spool provides a 30-foot replacement line for use in your auto feed string trimmer. This factory wound spool offers maximum reliability and eliminates the hassle of having to wind the spool yourself. The exclusive Black & Decker Automatic Feed Spool (AFS) system automatica…

Rayovac SE3DLN Sportsman Xtreme 300-Lumen LED Lantern $21.81 With optimized beams, rubber grips, and tactical switches, Rayovac’s SE3DLN Sportsman Xtreme lantern is ideal for use inside and out, whether you’re heading for the hills or camping out in your home during a power outage. Nicely compact and ultra-portable at just 7 inches tall and under 3.5 inches wide, the Rayovac SE3DLN lantern also provides an incredibly bright 300-lumen light that makes it a …

Belkin Mini Surge Protector Dual USB Charger $9.99 Protect your electronic devices while traveling….

The Sum of His Parts $1.99 …