Search found 9 matches

by bardbe
Oct 06 2018 9:05am
Forum: Battery Technology
Topic: Adjusting cut-off voltage of EMC-120 charger from bmsbattery
Replies: 4
Views: 809

Re: Adjusting cut-off voltage of EMC-120 charger from bmsbattery

Jumping in on this old thread as it covers my questions. I have a couple of these chargers I bought second hand with a motor kit. Both are 36V, but I run mainly 48V batteries. The box has tickmarks for 12-48V so I figured it might be a universal charger with adjustment of output V/I. I opened it up ...
by bardbe
Aug 04 2018 10:57am
Forum: General Discussion
Topic: Winter cycling/battery charge-discharge strategy
Replies: 4
Views: 515

Re: Winter cycling/battery charge-discharge strategy

In my case, I will not have access to plug in heater at work, and at home I can in cold days put it inside house or put some heating pads around it. It is hard to find some numbers at what temp one should not load battery. -10C is mentioned as a limit, but if your close to the limit, what discharge ...
by bardbe
Jul 31 2018 9:28am
Forum: General Discussion
Topic: Winter cycling/battery charge-discharge strategy
Replies: 4
Views: 515

Winter cycling/battery charge-discharge strategy

Maybe not the right time of year for a question like this, but hard to wait a few months for answer that's been on my mind for some time already :) I have been riding a Bafang BBSHD throughout last winter commuting 45km each day, lowest temp about -7 deg C. The battery has been charged indoors both ...
by bardbe
Apr 15 2018 4:50am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3696
Views: 255092

Re: Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

That is great news! Thanks for very quick reply, casainho! I will try it out when I have set up the bike with the motor. Will test with original firmware to make sure everything works in the first place and then reprogram it with OS firmware. Great effort of you guys from making stuff more configura...
by bardbe
Apr 15 2018 1:49am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3696
Views: 255092

Re: Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

Bought a Q128C 500W with a S12SH 40A controller from BMSB about a month ago, but not used/tested it yet. Just realized from searching ES that this controller might be too powerful for Q128C. I admit I got the S12SN instead of the S12S (which is probably the right choice) because I thought it might b...
by bardbe
Apr 09 2018 2:46pm
Forum: E-Bike Technical
Topic: Modify S06S controller to work on 13S 48V Li-Ion
Replies: 4
Views: 685

Re: Modify S06S controller to work on 13S 48V Li-Ion

Yeah, I guess getting a 48V model would be easiest, but I'll give it a try with upgrading transistors first as I already have the controllers, and I doubt you get quality FETs buying a $24 controller anyway. Thanks for info
by bardbe
Apr 05 2018 3:13pm
Forum: E-Bike Technical
Topic: Modify S06S controller to work on 13S 48V Li-Ion
Replies: 4
Views: 685

Modify S06S controller to work on 13S 48V Li-Ion

I have bought a couple of Q100 with S06S controllers from BMSB, that I would like to run on my 48V Li-Ion battery. It says DC24/36V so in order to make it work on 48V reliably, I need to make some mods. I know there are a few threads about modding the S06S on ES, but it is not 100% clear what config...
by bardbe
Feb 09 2018 5:19pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 438
Views: 43525

Re: BOSS LEVEL CUSTOM SPOT WELDER

Just received my welder. Looks very nice. No I'm gonna order battery from Hobbyking. Should I go for 60C or would 40C suffice? For capacity: How many welds approx on nickle strips will I get from a 4000mAh battery per charge?
by bardbe
Oct 03 2017 5:09pm
Forum: E-Bike General Discussion
Topic: How To, 50A BBSHD Controller Mod
Replies: 237
Views: 33559

Re: How To, 50A BBSHD Controller Mod

Very interesting thread! At the moment I do not plan to modify it, but this thread gives valuable info about the internals of this controller and its limitations, so very much appreciated the efforts and risks you guys take for maxing the performance of BBSHD with the stock controller. Regarding the...