Recent content by arnoA

OK, so I intend to build a Li Ion battery inside an original battery pack that had either Ni Cad or Ni MH cells installed, I have both available. Initial measurements lead me to believe that I can get a 7S6P array of 18650 cells in a casing with some room left over for a BMS, wiring and...

Hi! Yes, I do now see that photo's would have been helpful so here is at least one. The connector has four small blades, two for charging and one for a temperature sensor. I did consider replacing the connector early on but it's actually less easy than it appears at first glance. The original...

Thanks! On reflection I can see the benefit of pictures so I'll try to post some later. I can see that building my own battery is probably not the most cost effective but one reason for buying the bike was to explore the technology myself. What better or more relevant starting point than to...

Hi! I've purchased an elderly but apparently unused Yamaha XPC-26 Pedelec which has a few problems. Any help would be very useful. The first problem is that the battery pack is beyond recovery. I've managed to get three spare battery casings and made a 24v 5Ah SLA battery which works albeit...

I guess the title says most of it... I'm a semi retired engineer who has taken the Covid19 opportunity to have a play with electric bikes. I'm dipping my toe in the water by purchasing an elderly broken bike to experiment with. The idea is to reduce the use of my car for local trips, motivated...