- Thread starter
- #121
Started final assembly of the battery yesterday. Hoping to finish today.
1996 Land Cruiser EV Conversion - EVJ80 Project
- Thread starter J1000
- Start date
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- Tags
- conversion electric swap
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So cool. 
lp2k
Had a couple of drinks.. saw a couple of things
Hey will it be sort of easy to remove the pack if you have to replace individual modules ? Had to repack my 2008 Camry hybrid
- Thread starter
- #124
It will be possible but not easy. All the rivets will have to be drilled out and the sealant broken and then the box will have to be taken apart. I built this box with the plan that it will last the lifetime of the battery. Lithium batteries are like living creatures; as soon as they are born they start dying.
- Thread starter
- #125
Spent all day today and got one panel done haha. Going slow because it was the most important panel. Got all my wiring complete and 366v measured at the contactors! The BMS must be wired correctly because it is plugged in but it's not smoking! A good sign!
The contactor box bolts on to the aluminum side panel.
Panel on, riveted, bolted and sealed up:
WE'VE GOT VOLTAGE!
The contactor box bolts on to the aluminum side panel.
Panel on, riveted, bolted and sealed up:
WE'VE GOT VOLTAGE!
- Thread starter
- #126
All panels on! Sealant smeared on all the joints real good! Going to let it cure and then it's time for PAINT! So close!!!
- Thread starter
- #127
First coat of paint on. And since everyone wants to know, it weighs 600lbs. Oof. That's about 100lbs heavier than I anticipated. Still lighter than a 1FZ!
Any reason for making the battery practically unserviceable without cutting / drilling?
Probably simplicity/ruggedness of design...but I didn't build it so I'll let the OP chime in.
lumbee1
Native American
I love the added touch of the gloves!Spent all day today and got one panel done haha. Going slow because it was the most important panel. Got all my wiring complete and 366v measured at the contactors! The BMS must be wired correctly because it is plugged in but it's not smoking! A good sign!
The contactor box bolts on to the aluminum side panel.
Panel on, riveted, bolted and sealed up:
WE'VE GOT VOLTAGE!
South Texas 97
GOLD Star
Great build, thanks for taking us along.
Is there a need for some type of vent on this battery box, or is there some openings to let things breath with hot/cold or altitude?
I would think gloves would be mandatory with 366 volts.
Is there a need for some type of vent on this battery box, or is there some openings to let things breath with hot/cold or altitude?
I would think gloves would be mandatory with 366 volts.
I usually just lick my fingers and give 'er a quick look-see. If my hair stands up I know everything's connected. Hard to get the hair to work right when wearing gloves. YMMV.
lp2k
Had a couple of drinks.. saw a couple of things
Like I mentioned earlier- I’ve repacked a hybrid battery pack and over time it’s a game of whack a mole with replacing individual cells. That’s why curious minds are wondering if care is being given for if the pack needs to be serviced down the road.
Bite that tongue. Ask the wrong questions and you'll find yourself downthumbed.
lp2k
Had a couple of drinks.. saw a couple of things
Bite that tongue. Ask the wrong questions and you'll find yourself downthumbed.
I gave you a thumb up bud, you are thinking the same way I am. I’ve tangod with these batteries. Better invest in some 1000 volt gloves
- Thread starter
- #136
Keeping the battery safe and secure is the most important thing. Both from a safety (fire) aspect and for the life of the battery. There is no maintenance to perform. Water ingress or damage to the cells or shorting of wiring etc is the enemy. OEM lithium batteries are sealed up tight in a steel can as well, so I did my best to imitate it.
@lp2k your Camry has NiMh batteries which are old but tried and tested technology that last a long time. Guessing your Camry also has 150k+ or more miles by now. Lithium batteries just don't last that long and they generally don't fail early unless they are damaged or overheated. There is a very small possibility that one or two or my cells starts to fail or has some issue but it's not likely. Nissan manufactures these batteries to very tight tolerances and part of the reason I chose a 2017 30kwh is because it has the most robust and reliable chemistry and build process so it should last the longest. Basically if I have to replace one cell, I'll likely have to replace the whole pack.
I have a hole for a small IP68 waterproof vent breather (like this: 10Pcs M121.5 Nylon Waterproof Air Vent Valve, Screw In Protective Vent Plug E-PTFE M5 M6 M8 M10 M20 Plastic Breather Vent Valve (Color : 10PCS M20X1.5, Diameter : With nut, Height : Black) - - Amazon.com - https://amzn.to/3skPyrw) but I'm still waiting on it to be delivered to for now the hole is just taped up.
- Thread starter
- #137
I have heard that at these high DC voltages it can jump through the cheap multimeter leads and kill you easy
- Thread starter
- #138
It runs!!!! It rruuunnnnsss!!! We just took it in a joy ride around the block! 45mph was easy. It is definitely not slow! IT WORKS!!!!!!
Woot!
Congrats! You've been really getting at it and getting stuff done! I hope that since you live pretty far away, you will post some video at some point.
