Remove Battery Remove Golf Cart Remove Kits Remove Volt
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Battery Equalizer Schematics Rev 1.0

Porsche 914 EV Conversion

I'm currently working on a battery equalizer for the 914 EV based on the whitepaper at the following link: [link] The above two schematics show the circuit that I'm experimenting with using 12V batteries. It seems to work fine on my bench. By clicking on the images, you can get a much larger version of the pictures.

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Measuring State-of-Charge on Lead Acid Batteries

Porsche 914 EV Conversion

Since I'm still waiting on parts from ElectroAuto, I decided to take the plunge and do some extensive research on Lead-Acid battery technology. The 914 AC kit uses 8V golf cart batteries and I'm wondering if different batteries like Hawkers or Optima Yellow-Top batteries would be better.

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More Delays

Porsche 914 EV Conversion

Over the past few weeks I've been trying to contact the folks at Electro Automotive to get the status of the EV 914 kit. They finally responded last night and apparently they're completely buried under the demand for EV conversion kits. He got one of the earlier DC motor kits for the 914 from Electro Automotive.

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Hauling Lead and Confusing Connections

Porsche 914 EV Conversion

These high-capacity 8-volt golf-cart batteries are 70 pounds apiece. Here are the batteries in the front box. I pre-laid out these batteries on the floor to guestimate what the connections between the terminals were. Here is the battery strap designed for these kind of batteries.

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The Suspension is Here!

Porsche 914 EV Conversion

If you hadn't read before, the 18 8-volt golf cart batteries add 800 pounds to the weight of the car, so the suspension needs upgrading. The real gamble is how fast the rest of the kit shows up. On a slightly downer note, I ordered a $250 special desulfator for 6-24V batteries.

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Closing up more loose ends.

Porsche 914 EV Conversion

I'm still waiting on the battery racks/boxes from ElectroAuto, so I took care of a bunch of little things that have been neglected so far. Here's the battery tray that the directions said to remove. It's a pity that we have to remove this, but the size of the golf-cart batteries clearly interfere with the latch.

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Electric Car Makers: Oregon Wants You - Green Inc. Blog - NYTimes.com

Tony Karrer Delicious EVdriven

April 10, 2009 10:09 am Link It amazes me that in the vast debate about electric cars world wide including here in Norway, no one ever mention the fact that the batteries in such cars need replacement in no more than five years. So imagine a million electric cars on US roads which all need to change these batteries in say 2015.

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