Recent content by crazymaster

what you think about these BMS i suggested? And what about this one: https://enerprof.de/en/accessories-components/bms-pcm/13s/474/bms-13s-20a-fuer-li-ion-akkus-48v-46-8-48-1v?c=153 Its double price... for now it works good... but i wonder if i should buy more of it or stick to the cheaper...

Everything looks great on the battery pack... The BMS is this one: https://www.amazon.co.uk/gp/product/B07CMB83RN/ref=ppx_yo_dt_b_asin_title_o05_s01?ie=UTF8&psc=1 I had one BMS of these which just stopped working.. and probably one more which is making problems too. So which one you think is...

Hello! I just opened a battery that is not charging now. It was working before. Currently the battery group which is at the POSITIVE SIDE is not showing any sign of life and i tried to recharge it separately - but without success... Thats how all cells looks like: - 4.21 4.22 3.55 3.34 4.21...

I have experience with batteries. I have made some and they work perfect, just they was small - 48V 17.5A maximum... so now i need to get bigger and stronger spot welder... any suggestions? I may also stick to a company to make it, until i find good welder for myself :) EDIT: I checked the link...

About the maximum speed... i will be mostly using 30-50kmh and in rare cases more(i just want to have the power when i need it : ) i have sport motorcycle and i like the power :D :) )

Any tips from where i can buy good quality cells probably 3500mah panasonic or samsung or any other you suggest me? With my calculations i need 300-400pcs Which cells you will suggest me for the battery? 74V 40-50ah andlooking for about 50A current maximum (3000W)

Hello! I have a lot of experience with electri bikes now, i had some 250-500-1500-3000W bikes, but now i want to make stealth bomber, so i am looking for some tips. 1. I am looking for 60-80kmh max speed(in most cases i will not reach more than 40kmh) 2. I am looking for 100-150km range per...

I don't know from where you seee the prices - i only compare to ebay/amazon. Anyway we can speak about the prices if you are interested cal me - 07480721813 Some batteries already got sold. And i have some cells left now too

its my mistake. E26QY, Bethnal Green, London Anyway i have and one new front engine bought before a few weeks, still in box, i will refund it these days, but if somebody is interested i can sell it too with 20% OFF

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Brakes, pas sensors, LCD, charger, brakes oil bleed kit

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Hello! I am leaving the country in a few days - sunday 19th of May! EVERYTHING IS IN LONDON - BETHNAL GREEN So i need to sell everything i have. I have many tools and e-bike parts. Most of the tools are used just a few times, e-bike controllers are brand new, only the bluetooth(72V 40A) one...

BRAND NEW(including chargers!), made by me and not used(only tested of course with 2-3 recharges): 36V 11A Chinese with 50x2200mah + BMS - 140GBP - FOR EXTRA 50GBP I CAN ADD CASE (or only 50 cells for 80GBP, i still didnt started making this one) 36V 12A SAMSUNG 3000MAH CELLS +BMS - WITHOUT CASE...