67 EV Miles so far...

This is a "catch-up" post with things that have gone on the past few weeks. No pictures for this one, but I will have some next time! The truck is now drivable, but I still have a considerable punch list of completion items, the big one being a paint job.

Mark Hazen of www.evhelp.com brought my upgraded controller back a couple Saturdays ago. We installed it and took the truck for a short test drive. Everything was working great! I finished that day with a nice EV grin. My longest trip so far has been 17 miles round trip. I had around 75-80 percent charge remaining on the batteries on my return. I will gradually increase the distance to gauge my working range of the truck. It took around 4 1/2 hours to recharge after this trip.

I purchased a kwh meter, single outlet, manufactured by Kill a Watt. One of my 12 chargers is connected through this meter. This will enable me to measure the electricity used for a single charger and multiply by 12 for total power use. More on this later when I have more data to write about. I should be able to calculate my cost per mile.

So, here we are, short and sweet. More to come later, so stay tuned!

Charge Wiring Complete

Finally... I am now able to charge all the batteries at once, with very little effort. I completed all the soldering on the truck side connector and then mounted it inside the gas door. It took some time to sort through all the wires and group them to the correct spots ( one set to the under hood batteries, one set to the rear batteries, two sets to the mid batteries ), and then route and attach them. Thank goodness for tie wraps!

Each battery connection has a 30A fuse in line at the battery terminal. This will protect chargers, batteries, and wiring should any shorts occur. These can be seen in the photos. Next I made all the connections from the umbilical cable to the terminal strip on the charge board. I had to cut them a second time to get all the lengths correct. I bought a nice hat hook from Home Depot for the cable to hang on when not connected to the truck.

Once all this was complete, I plugged in the truck and let it charge. I have been keeping the batteries topped off and ready to go. My chargers go to "float" mode when they are complete. My upgraded controller should be back on the truck next weekend and the truck will be ready for it's first road test. I acquired insurance and license tag this week.

My "to do" list is starting to get shorter. I am pretty sure I want to install an on board battery charger so that I can charge away from home. I have not chosen the one to use yet. The truck needs cosmetics. Sanding and painting, some body work, and some minor things to do to the interior. I want to install a removable tow bar on the front, also.

Until next post...it's been a long tunnel, but the light is getting brighter :)

Tilt Bed, Take 2, Charger Wiring Begin

This post includes some photos of the failed bed tilt attempt and then some pictures of the completed tilt bed. Since the last post, the bed was removed from the truck and the new hinges reinforced and welded. Two pins made from cut off trailer hitch pins were added in the front to hold the bed when down. These work nicely and I will try to take some photos for the next post. I ordered 2 200lb gas springs and attached these to the truck frame on one end and welded brackets onto the bed cross member on the other. When raising the bed, it is lifted a few feet and then the gas springs take over to raise it the remainder of the way and holds the bed up. Closing is very easy also. The bumper was not able to be reattached where it was originally. It was bolted to the frame and this is not possible due to the tilt bed. New brackets were welded into place and attached to the existing modified bumper brackets. This turned out very well. The bed was then returned to the truck and hinges bolted into place. Some priming and black paint was applied to the new steel pieces, then the bumper attached. Small spacers were cut to put onto the hold down pins between the bed and the cotter key. This works very well also to keep the bed down. This completes the tilt bed. Access is provided to all batteries for servicing. The bed is also totally removable for battery replacement when needed.

My work then turned to charger wiring. I cut 24 6 foot lengths of #12 stranded wire and soldered them to a 24 pin cannon plug. I then ohmed each wire out and labeled them all. This will attach to the charger board on the wall of my garage and will plug into the truck to charge the batteries. There is a photo of the completed assembly. Next, I had to determine the lengths of wire needed to go from the gas door cannon plug down the bed and to all the sets of batteries. I cut all these lengths, labeled them, and began to solder them to the connector. The last group of photos show my work setup for soldering and the mess of wire that I will deal with soon.

That brings us up to date! My one year anniversary of buying the truck is in about a week. I had hoped to be finished by now, but alas, it was not to be. The light is shining at the end of the tunnel, stay tuned for more!

Tilting the Truck Bed (beginnings)

I wanted to write up a quick post without photos, because it has been awhile since my last post. Work is still continuing on the truck, mainly with the bed. A couple weekends ago, we spent most of Sunday welding hinges onto the bed and the truck frame only to have the hinges bend when we attempted to tilt the bed. My analysis determined there were 2 factors that caused the problem. First, the hinges were too far forward and put a lot of stress on them trying to raise the bed. The other issue was the hinges themselves were just not up to the task. Sorry about that Lowes!

I ordered some heavy duty hinges online and the following weekend, we found a different point on the bed to weld the hinges on. A piece of angle iron was welded across the rear of the truck frame, and to this holes were drilled and the hinges were bolted. This is good because I wanted to be able to remove the bed to replace the batteries when necessary. Our test tilt was successful and the next working session will be to remove the bed, finish reinforcing the hinges and welds on the bed side, then install the gas springs and some kind of pins to hold the front of the bed down.

Next post will include photos of the above work. I continue to keep moving forward.

Installation of Batteries, Test Run!

I reached a major milestone this weekend! Thank goodness for the 3 day holiday! It was appropriately named Labor Day. Let me cover a few things that I accomplished leading up to this weekend before we get to the fun stuff!

During the previous few weekends since my last post, I re-attached the cable running to the tail lights and ran the hv cables from the under the hood to the rear battery box. I also put 50 pounds of pressure in the air shocks as a starting point. I will adjust this to level the truck once the bed is re-installed. I cut some pieces of a rubber mat to place in the bottom of the battery racks to keep the batteries from sitting directly on the steel and give them a small cushion.

On Saturday I went to our local Sam's Club to purchase the batteries. They are Energizer Brand (made by Johnson Controls) 6v golf cart batteries. I got a few strange looks and had to offer some explanations. "What are you going to do with all those batteries?", was the most asked question. I was glad the great employees there loaded them into my truck (many thanks!) or I would have been there all day...followed by a trip to the hospital to fix my back. Each battery weighs 65 lbs. I was dodging thunderstorms and made it into the driveway before the downpour began. Luckily, I had a tarp to throw over the batteries.

After a short break, I unloaded the batteries one at a time, and put them into the racks. I had to make sure they were in a certain pattern, so the cabling would follow a path I worked out on a drawing. Once they were all in, I installed the hold down straps that I made. The day was nearly over by then. Cabling would start on Sunday.

I began making the interconnect cables, a process I believe I covered in an earlier post. It involves a torch, solder, 2/0 welding cable and terminals. All the batteries are wired in series. Half way through the day my son Matt came to help me finish. We also installed a 300A fuse in a box in the middle of the battery pack. This protects the pack if there are shorts within the pack. It was near the end of the day when we had everything wired.

We put the rear axle up on jack stands for testing. I had already previously run through most of the testing (less the HV part) and everything passed. I used my trusty voltmeter to check for voltage at the main contactor. Good! Next, the key was turned to the "on" position. Controller fan running, (check) vacuum pump running..then stops, (check) dc to dc converter operating, (check), radio playing classic rock, (check-a-rooney)!

Next there are 3 conditions to be met in order to drive. A relay box ensures this. First, the key must be on. Second, release the parking brake. Third, foot on the brake pedal (then release). Next, push slowly on the "gas" pedal. The main contactor then "clunks" into place, feeding the high voltage to the controller.

I pressed slowly and the rear wheels began to turn...all good. We let the truck down and proceeded to back out of the garage. No need to use the clutch to start and stop, only to shift gears while underway. I drove once around our pond, then Matt drove around once also. I can only guess that the croaking alligator I heard in the pond was congratulating us on the maiden voyage ( or else he just wanted to eat us ). Either way, it was all good :)

It was a very exciting drive! I was thrilled that everything was working! I would have driven around the block, but I needed to charge the batteries. That about wraps up this blog post! Next on the task list is to put the pickup bed back on the truck...more to come, stay tuned!!

Oh, and one last thing. If you happen to come to see my truck, don't say, "that's a lot of batteries!" I heard that quite a few times throughout the weekend...lol

Paint, Front Batteries, Circuit Breaker...Progress

It has been quite sometime since my last update. The weekends are the primary time to work on the S10, and I have been gone a few, and had more pressing things going for others. So, here is what has gone on since the last blog post.

I completed all of the priming of the rear battery boxes and frame. Following this I applied 2 coats of flat black paint to the same area. Next I installed a set of helper springs to the rear leaf springs. These will enable 1500 pounds of extra load. Then I ran the lines for the air shocks and tested them. This pretty much completes the battery racks until batteries are purchased.

Up front, the 4 front batteries were installed and cabled in series. I also ran the wiring to the controller and the motor. This is all now complete. My attention then turned to the main circuit breaker for the high voltage. I purchased a box from digikey to mount the breaker in. I had a difficult time finding a place inside the cab to mount the circuit breaker box and finally decided to put it under the driver's seat. When finished there will be a line attached to the breaker to a ring mounted by the driver so that the driver can trip the breaker to off if needed. The photos show the breaker during and after installation. I then ran the 2/0 wire to the main contactor under the hood.

That about wraps it up. I have one more 2/0 wire to run from the front batteries to the rear battery box, then I will be ready to buy the remainder of the batteries and install them. I believe the light is starting to be visible at the end of the tunnel! Until next time, I will .....keep moving forward!

Finish Battery Boxes!! Finally

Hello, everyone! I made a lot of progress on the truck this week. I took vacation days on Tues, Weds, and Thurs. Each day I put in 10-12 hours to get to the place where I am today. My twitter friends may have noticed me more absent than usual on these days.

Quick review, from the last post we had just welded in the rear of axle battery box. This box holds 8 batteries. Before this week began, I had several weekends of welding fun. I completed all the welding on the front of axle boxes last weekend. On Tuesday myself and Mike welded the front 2 boxes to the truck frame. Wednesday was spent grinding things down to look pretty and then I began sandblasting the frame to get it ready to prime. This was my first experience at sandblasting (much the same as a lot of "firsts" on this project) and to say the least, it was interesting. When I was finished, I had sand everywhere! There was sand all over me, also, in places I didn't know existed! :) It sure cleaned up the rust and left everything very clean.

The remainder of the last day and a half, I spent priming all the metal of the frame and the battery boxes. I used Rustoleum Professional Primer from Home Depot. It took 4 large spray cans to complete. In retrospect, I should have used my air compressor and a spray gun....Oh, well! Everything about this project has been a learning experience.

I was finished using my 4 purchased batteries as templates, so I installed them into the battery rack under the hood. They are ready to be cabled together. You can see these in the photos. You will notice the "Energizer" labels on the batteries. This truck will be powered by the Energizer Bunny! (or several thousand of them running mindlessly around a circular belt)

That about wraps it up for this post...next up is topcoating everything you see in red to flat black. I am getting real close to purchasing the remaining 20 batteries. I even checked them out at Sam's Club to make sure they had enough in stock. Until the next post....keep moving forward..... :)