Electric Bike Battery Repair & Repacking

[E biker]

Thanks harry s both sound good

 

[tomjasz]

Thanks for the very good info, however way over my knowledge of testing, batteries are two years old and we ride a lot in spring through summer and fall. I have noticed quite a difference when I pull the cart with the puppy .

HarryS gives the best advice. There's nothing mysterious about using the meter he suggested. IMO it a critical tool and very easy to implement and learn how to use. I came to eBikes from a career as a horticultural director. ZERO electrical background except for using sprinkler controls. A WATT METER AND A MULTIMETER CAN SAVE A LOT OF HEADACHES AND ENABLE OTHERS TO HELP YOU SORT ISSUES.

 

[Randroid]

On a side note, batterys like these can cost you your life if something goes wrong, so I wont fiddle around with them, period.

Amen. I still remember the time in the mid 60's while I was a radio tech in the USMC and was knocked off a stool onto the floor for putting my where it shouldn't go.

 

[oulipo]

You might be interested by the Made-to-be-repairable (and Fireproof!) battery we've designed at Gouach in France!

https://www.indiegogo.com/projects/infinite-the-repairable-universal-ebike-battery/x/8167177#/

 

[tomjasz]

Fireproof!)

bullshirt!

 

[oulipo]

bullshirt!

Thanks for your message, you can take a look here:

 

[harryS]

If you had been able to heat the Bosch cells the same way, they would have vented safely like your battery. , Most other .plastic case batteries with quality cells would do the same. Drilling thru the Bosch cells can create a short circuit that heats so fast, the cell ignites before the vents can do any good. Nonetheless, you have a nice advancement in packaging. Good ideas. Well done,

I'd buy a few, except I already own some packs that I feel are safe enough because they have quality cells.,

If you're going to extoll the fireproof quality of your battery, qualify that it works with quality cells. If some guy loads it up with junk cells, they may not have the safety features and may just self ignite in the case. What happens then?

 

[Slaphappygamer]

I wouldn’t be surprised if some one used junk cells either. I mean, the claim is that this is fireproof. Let’s not worry about cell quality.

What would the outcome be if these UltraFire cells cells were used? Surely the Bosch battery uses better cells than these.

 

[oulipo]

We're using DMEGC cells which are high-quality! A new fireproof video is coming very soon!

 

[Slaphappygamer]

How did you heat the cell? Did you over discharge them? At what C rate? Do you mean the 20P, 25P, 35E, 30P, or 29E? Maybe you can overdischarge the Bosch battery at the same C rate.

 

[TrevorB]

Bosch powerpacks have plastic housing, newer powertube are metal (aluminum?).
Moral of story don't drill holes in your expensive battery. I've replaced a bosch under contents insurance as it died after being dropped.

 

[tomjasz]

Looks like it's still vaporware, but if your good work survives the liability insurance better be high. The typical user will find many pitfalls. Simple errors can be disasters. However if they ever hit the open market and the fire proof is real, I'll own one. That said I still would worry about the average home builder a nightmare. That comes from 10 years of battery sales, repairs, and builds.

 

[harryS]

I believe it's real. Per the Indigogo page, 577 backers kicked in $217K, and they were testing the first product a few months ago. They're not taking any further orders though,

With a trade war here, who knows what will happen.

The lattice should have keyed somehow so you can't put a cell in backwards. Kaboom.

 

[PCeBiker]

The lattice should have keyed somehow so you can't put a cell in backwards. Kaboom.

I keep my lettuce in the fridge.
Cold lettuce is far less inclined to explode.
Don't let it freeze though, cuz it won't be crispy anymore.

 

[PCeBiker]

You might be interested by the Made-to-be-repairable (and Fireproof!) battery we've designed at Gouach in France!

bullshirt!

Send me one of those batteries and I'll give it a good ol' redneck test.

I know how to blow s*it up real good.

 

[Curtech]

Thanks for the post.

It's kinda strange to me when all these DIYers say "oh it's so easy anyone can repack batteries" and yet it's difficult to find people locally in major cities.

Anyone know of one in the LA area?

Did you find anyone in LA that repacks or makes custom battery kits?