Losing my mind trying to figure this out

[harryS]

No, we're talking about run-of-the-mill silverfish case, which has been around for years. Ecotric sells a 36V12aH for around $359 for our bikes but rarely has them in stock. Nonetheless, equivalent packs available on ebay for $100 less.


The guy in the video is always selling off surplus/used batteries, and some of them are good DIY deals. He is out of those packs, by the way.

 

[Robspace1]

No not at all. Nothing like it. The shape is all wrong and that's a 500 watt. Mine is 1000 watt. And, I would never, ever trust any lithium bike battery that cost just $49.00. lol-That's some Chinese junk battery probably found on Ebay. Dangerous!

 

[Robspace1]

The Ecotric Seagull uses a 48 volt battery. The ones from China don't last. They will leave you stranded. Better to buy the Korean-LG or Samsung type made in the US. I had my original Seagull battery die for no reason on the trail after less than 1 year. Showed 0 voltage when tested. Never again.

 

[kmccune]

Good price. My girlfriend wants a backup 36v for her Peace Dove but Ecotric no has. Back in stock in a few weeks.

I bought a UP 18Ah "Silverfish" bat for my "Peacedove" and it worked great, knock on wood,I have had good luck with all the aftermarket batteries I have bought, the thing I do is this,I try not to go too cheap and I count the rows of cells vs the claimed Ah and lower my expectations accordingly. most of the time I assume a little over 2 ah a row on the cheaper batteries.

 

[harryS]

Some more Ecotric Silverfish pics. I finally found that the cells are in a shrink wrapped package, held in the case by friction. It's like removing handlebar grips. A little soap and it could be pushed out.



With the shrink wrap peeled back, I found 50 cells in a plastic form plus a BMS circuit.


WIth further teardown, you can see the conductor plates on the ends of the cells and the plastic form. What's missing between this pack and a higher end pack is (a) better quality cells, (b) individual cell fuses and (c) perhaps a better BMS. Still, it looks like a well assembled battery. Not bad for a $779 ebike.