Battery upgrade

[eMark]

This latest availability of cheap batteries is pretty new. Just a few years ago a $300 pack was unheard of. Did the cost of materials go down or did the market use cheaper materials?

China is essentially held harmless for any disasters. Standards are coming. But UL ratings are an expensive undertaking. Expect to pay more.

EM3ev is based out of Changzhou, China, and is managed and operated by a British owner with an Engineering Background.

Most all of the most popular brand name A-grade 1865/2170 cells (including those used in EM3ev batteries) are manufactured either in China or Asia. So, how is EM3ev held accountable for any cell problem when "China" (e.g. LG) "is essentially held harmless" ?

Checking the EM3ev website ... https://em3ev.com/?gclid=CjwKCAiAlp2fBhBPEiwA2Q10D6h2MtJ9X0lWUh0M1U-j0p26E40cczrSwS98DgMGFLAYduU6NRZrQxoCKHcQAvD_BwE ... they only show batteries with a protective case. 48V e-scooters just use a blue shrink wrap battery like those blue shrink wrap UPPs that would fit as a replacement in his 48V Chaos e-scooter. That's if he should decide it's worth the effort and price to convert from SLA to Li-ion.

WHY doesn't EM3ev list any 48V 12Ah to 20Ah basic shrink wrap packs when they are so popular as a 48V replacement for e-scooters?

What do you think is the approximate cost for EM3ev to fabricate a 48V 15Ah basic shrink wrap pack with trustworthy quality cells and BMS? If you can't even venture a guess and have never taken the time to find out then ... WHY all your hype about the OP buying a shrink wrap pack from EM3ev for his used 48V Chaos e-scooter??

Leads one to believe that you may have some ulterior motivation for your fidelity to EM3ev.

 

[eMark]

Ask UPP to build a pack with 100% nickel ribbon and an upgrade BMS. Few of the other budget builders will do that.

And yet you said you own two Unit Pack Power batteries. Also see that you list UPP Battery Sofia as one of your 9 friends, but no sign of a more expensive EM3ev friend among the nine ...

https://scontent.ffcm1-2.fna.fbcdn.net/v/t1.6435-9/64562810_177947499889100_9167845157758828544_n.jpg?_nc_cat=104&ccb=1-7&_nc_sid=09cbfe&_nc_ohc=_fWrXu5fgHcAX9NlYh6&tn=JYR8B7eFjQw91yLd&_nc_ht=scontent.ffcm1-2.fna&oh=00_AfAoTTvr4nOFNxGL4usP9K2N9qBUgJE9N2-ESe7ir71U3w&oe=641A3259

UPP batteries are good budget batteries. Don't abuse them (e.g overcharge) and they will serve you well ...

 

[eMark]

I have no idea what “battery Sofia “ refers to.

You listed UPP Battery Sofia ... Upp Battery Sofia ... as one of your 9 Facebook friends. All of your Facebook posts are by you ... didn't see one of your Facebook post/comment posted by your wife. If you don't believe give me permission to post your Facebook website as proof that Upp Pattery Sofia is one of your current 9 Fb friends. STOP with your false accusations and personal attacks.

What i'm pointing out is how evident it is that you will go out of your way to bash UPP because they are apparently taking business away from EM3ev battery sales.

 

[eMark]

Jeez, don’t be so critical. UPP, in my experience selling scores of batteries had much higher failure rates. You’re comfortable with genetic cells? I’m not. All good just a different opinion. Although mine is based on scores of sales. Yours seems to be based on internet bias.

You are the only one that has ever claimed ... "in my experience selling scores of batteries had much higher failure rates". You had a very unfortunate experience with a e-bike rental buiness. It was just as likely human error or using UPP batteries that weren't suited for the ebike. It's only natural to always blame the manufacturer. For example if an employee overcharges a battery pack until it explodes causing a serious fire.

Post just one other previous ES thread over the past few years claiming UPP sells scores of batteries with higher failure rates than EM3ev. No research has ever been done. Just your wishful imagination. That e-bike business couldn't afford to buy expensive EM3ev batteries.

Six out of 10 Best Ebike Battery In The US (February 2023) are Unit Pack Power batteries ... Our 10 Best Ebike Battery in the US - February 2023 | BestProductsReviews.com

https://www.amazon.com/dp/B081N8TLP4?tag=track-ect-usa-1090121-20&linkCode=osi&th=1&psc=1 ... 9.7 rating as exceptional
https://www.amazon.com/dp/B08DP1YMTK?tag=track-ect-usa-1090121-20&linkCode=osi&th=1&psc=1 ... 9.2 rating as excellent
https://www.amazon.com/dp/B081SMTPW2?tag=track-ect-usa-1090121-20&linkCode=osi&th=1&psc=1 ... 9.0 rating as excellent
https://www.amazon.com/dp/B08BC9CN5K?tag=track-ect-usa-1090121-20&linkCode=osi&th=1&psc=1 ... 8.7 rating as very good
https://www.amazon.com/dp/B08Q7RTMM5?tag=track-ect-usa-1093275-20&linkCode=osi&th=1&psc=1 ... 8.5 rating as good
https://www.amazon.com/dp/B08DKS1BY7?tag=track-ect-usa-1093275-20&linkCode=osi&th=1&psc=1 ... 8.3 rating as good

If that business would have purchased the 8.3 replacement shrinkwrap batteries for their ebikes there may not have been any failures, but they probably couldn't afford to buy those UPP batteries. EM3ev doesn't even offer any replacement shrinkwrap 48V 15Ah or 20Ah batteries or any 36V 15Ah. That business possibly bought the least expensive underpowered UPP batteries. Possibly abused them thought they were saving money.

STOP with your personal insults. Your replies are obnoxious.

 

[tomjasz]

You want to argue. FFS. We all just want to ride and want the best we can afford. If sharing nearly a decade of experience means you take the piss at with every opinion… so be it. Use the ignore feature and avoid opinions you can’t swallow. I apologized and tried. Only to get another piss. The video was Bruno no relationship to Grin and EM3ev. I did a PM to make peace but apparently that’s not an option. I offered Vruzend kits at no cost. Trying to be civil. I’m too old to continue a pissing match. My entire career was built on learning from those with more direct experience than me. I don’t understand how that’s controversial. But hey, all the best. My offer of free kits still stands. Peace. As-salamu alaykum

 

[eMark]

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