I am 99% sure that battery will be assembled in China, BUT if the German reseller is the company that is honouring the warranty and they are easy to return a battery to, that might be enough to make it tempting.
EM3ev doesn't sell a Dorado compatible battery, I have no idea why Tomjasz attempts to highjack this thread whenever people post to it. His post refers to a battery (Shark) that does not fit any bike that uses a Dorado style battery. He talks about a battery he ordered from Jenny that he admits...
Totally your call on where to purchase. Aijiu is a company I trust to be honest and deliver what they promise. Via Jenny, myself and others have purchased dozens and dozens of batteries through Aijiu. Jenny only moved on due to having a 2nd child and quitting the job to be a mom a while before...
I can confirm my battery from Jenny continues to work after years of use and 1000's of km. I have other batteries from her that also work great. I've come to count Jenny as a friend of mine and she's been fantastic. Unfortunately she has taken another job and no longer works for Aijiu Energy but...
My son rides all year winter (snow) and summer. He has some Aujiu's batteries and they've served him well. We haven't opened them up though. I have opened my battery the 25ah and it has seals and such as was fine inside, We've biked 2 Aujiu's batteries in a hurricane once as we were on a...
EM3ev doesn't seem to even sell a Dorado compatible battery?
No argument with EM3ev being a supplier you trust, but Jenny and Aujiu's batteries are used in 1000's and 1000's of ebikes, scooters, etc. Selling direct to users is a side business for them, they sell wholesale to bike and scooter...
Kinda my question too. Jenny uses Samsung cells or high end Chinese cells depending on the order and a good BMS plus everything is fused properly, I've seen pictures of mine being constructed since it was the first one off the production line and it's double wrapped inside and pure nickel...
This looks more capable for sure.
I feel they won't boost to 54.6v but these units are more what I was thinking.
https://www.amazon.ca/Cllena-Waterproof-Converter-Regulator-Transformer/dp/B07V1H7RQW
This unit is still not quite the right one but try finding some sealed units like this...
My concern with the unit you found is that it's not sealed from the weather. It does claim to be able to handle 1200w but I feel looking at the pics the heatsink won't handle 1200w sustained, I could be wrong though it would need to dissipate about 120w if it's got 10% losses.
Couple notes regarding 52v and Das-Kit. I've used a 52v battery many times on my Moscow+ and my son's Amego/Moscow. Both handled it fine and his Moscow has an unrestricted display so it really uses the 52v and he can get well over 40km/hr and maintain it.
Also OVT if your boost converter looks...
Hey everyone.
Did another re-test this season of the 25ah battery. The theoretical capacity is 1200wh, after 2+ years of use I can report the measured capacity is 1147wh which I thought was excellent for a battery that has 6000+ km on it and 2 years use (into 3rd year now) .
Year 0 - Capacity...
I cannot speak to your Stromer bike specifically. But a device from Amazon like this one will accomplish the goal.
https://www.amazon.ca/Regulator-DROK-Numerical-Converter-Adjustable/dp/B08G4S8QQ8
This particular device is NOT a good pick but I just searched up something quick, there's...
Very low. I literally just use 2 old school 60 watt lightbulbs in parallel. The battery lights them up to about 1/2 brightness vs 120vac. They draw about 1 amp so very slow discharge on my tests, I just don't have another load that is as easy to use. I should use the core of old ceramic heater...