Search found 10 matches

by Davideus
May 05 2020 4:39pm
Forum: Battery Technology
Topic: BMS Cutoff Problem
Replies: 5
Views: 283

Re: BMS Cutoff Problem

Adding to the Ah capacity is another. So, if I take this approach, adding another 20s8p in parallel config, consisting with same cells (Same pack I have now), total of 40Ah should be enough? Connecting in parallel config 2 separate packs with 2 separate BMS is Ok? I have this ESC: https://i.imgur.c...
by Davideus
May 05 2020 11:49am
Forum: Battery Technology
Topic: BMS Cutoff Problem
Replies: 5
Views: 283

Re: BMS Cutoff Problem

Yes, LVC is a critical BMS function. Good ones let you adjust it, since V drop under load depends on the current. Imbalance can be a cause, just as much as the pack being too old, small or weak. So what size of pack i should use for my config? One other way is if it helps, I can adjust in ESC confi...
by Davideus
May 05 2020 11:38am
Forum: Battery Technology
Topic: BMS Cutoff Problem
Replies: 5
Views: 283

BMS Cutoff Problem

Hello, I do have a oversized esc (72v 20Ah battery, 41A motor & 100A esc) and frequently experience bms cutoffs. If we exclude individual cell disbalance, could this be small (weak) battery pack problem? Maybe esc pulls too much juice from battery and bms switches the power off for security reasons?...
by Davideus
Feb 10 2020 5:12pm
Forum: Stand-up E-scooters and E-skateboards
Topic: 10kW stand-up scooter with air suspension
Replies: 230
Views: 59060

Re: 10kW stand-up scooter with air suspension

alex_2d You are doing some exceptionally good work... but I'm not gonna call that "work" if you're love what you do and immerse yourself in that task with body and soul <3 And actually i see that you're doing just that! Maybe it's not the right time, considering now you're building a CNC machine an...
by Davideus
Oct 13 2019 11:08pm
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 1152
Views: 115027

Re: Votol EM-100 & EM-150 controllers

Ok! Got it... Hope they will add bluetooth functionality in the future... Thanks for answers <3
by Davideus
Oct 13 2019 10:22am
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 1152
Views: 115027

Re: Votol EM-100 & EM-150 controllers

larsb
I read in other thread here on forums that you burnt your VOTOL controller. Do you found reason and fixed that or just got new one?
I hope in your experience it was only once, because i really want this thing to be reliable.
by Davideus
Oct 12 2019 7:46pm
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 1152
Views: 115027

Re: Votol EM-100 & EM-150 controllers

Oh i missed that "cruise" part because i downloaded other version of the manual... Now i see. So that's basically means that this controller does not support manual cruise with button... It's just auto cruise. My previous controller had that function. But after closer look there is remapping functio...
by Davideus
Oct 11 2019 5:25pm
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 1152
Views: 115027

Re: Votol EM-100 & EM-150 controllers

can you show picture of the diagram you refer to. Brown wire is not in the original one. Yes, sure.. https://i.imgur.com/k7eG4a4.png What about Cruise button function? here is picture from software: https://i.imgur.com/fJwJFN1.png Also according to manuals some models have CAN Bus interface. My que...
by Davideus
Oct 11 2019 5:06pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Lithium Titanate (LTO) battery pack for electric motorcycle
Replies: 12
Views: 2438

Re: Lithium Titanate (LTO) battery pack for electric motorcycle

Can you post a link where you bought your 72v (84max) 30ah pack and charger?

Thanks!
by Davideus
Oct 10 2019 8:57pm
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 1152
Views: 115027

Re: Votol EM-100 & EM-150 controllers

Hello, I have questions about VOTOL EM-100S Controller. In the software i can see "Cruise" function. But on diagrams there is no connection labeled cruise, so where to connect physical button switch for manual cruise control? One more question is about wiring in diagram which states "one key repair"...