AndyYellow

Is there any update about this 13AH battery? After the speed limiter was removed, the energy consumption is higher than before, which made the battery really appealing. I really want to purchase one if it’s on market or even a prototype one is okay to me!

https://item.taobao.com/item.htm?spm=a312a.7700824.w4004-17354061890.6.213c1c1eD7v7UV&id=577340280309 I'd asked the seller, however he isn't that good in English, so you may have to have someone understands Chinese to help you communicate with him.

The 2 pictures is the record of my short trip within Taipei city. I didn't put my mini to the speed limit, just rode it with a comfortable speed (max 18-22km/h I think), stopped at all red lights and followed every traffic rule. We can see my trip was 5.4km, however the expected remain mileage had lowered 8.6km. My enlarged hybrid tyres also has something to do with this. However in my own experience, it doesn't make such huge difference. Everyone with modified firmware really should put battery issue as their next step. I also asked the guy in China who had modified the firmware for me. He said with my firmware, batteries without BMS would still be speed limited, however it's limited on 18km/h, not the poor 10km/h. Besides, if we simply modify a genuine battery with larger cells, since the battery has BMS information, there won't be a speed limit problem.

Exactly. In fact, with the speed limit issue solved, I think battery would be the last issue we need to deal with. Previous more4mini had made enlarged batteries, which was unsuccessful due to speed locked at 10km/h. Now we have the speed limit removed, I'm wondering if the speed lock with non-genuine battery still presents. So far as I know, 蕭瀚 is also trying to install enlarged battery on his mini, which also had the speed limit removed. Hope to hear some good news from him in the near future.

Hello trevmar, In fact, the speed 25km/h combined with hybrid tyres currently are enough to me, so I rarely reached that speed limit. I'd only used the modified mini for 3 days, maybe when I used it for longer time I can describe it with more details. The "pushback" still presents, but since I rarely reached speed limit, so it's really not obvious to me.

I had completed my firmware upgrade, and it just worked smoothly! The 25km/h speed limit combined with hybrid tyres, made the mini run with actual speed 27-28km/h I'm very satisfied with the result. I found the service on Taobao.com and had shipped my motherboard from Taiwan to China, which had costed me 5 days and about 50USD including express shipping fee.

I searched Taobao and found someone who provides service of modifying the firmware to reach 25km/h. I'll send my motherboard to him on mid-October, and hope I can provide some good news to the forum!

I sent them query weeks ago, but never got any reply from them, not even a “no”. Maybe it’s because I’m not in Russia that they can’t practically upgrade my firmware, so they simply decided to ignore it.