Search found 49 matches

by quamau
Feb 14 2020 5:33pm
Forum: E-Bike Technical
Topic: CAv3 and legal gas: silly me!
Replies: 1
Views: 131

CAv3 and legal gas: silly me!

My bike uses since years a thumb throttle enabled through a 6-poles PAS. This was done via CAv3: pedaling is sensed but serves the only purpose to enable the throttle, thus keeping the bike legal (Europe): when pedaling stops the motor stops. Super-satisfied! Some time ago I updated the CAv3 firmwar...
by quamau
Feb 12 2020 6:25am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Re: bluetooth BMS?

Same problem as serious_sam here: newest app version does not work on Android 9, older does. Is there an authoritative place to look at for app updates?
by quamau
Jan 15 2020 10:41am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Converting a board from 12s to 14s

I am almost through this process, which I hoped would be smoother. After finding the right spots to desolder (informative pictures at p.37 of this thread), I had to (re)discover the fact that the new cells need recalibration, otherwise each cell is seen with a 25V voltage... This needs to be done vi...
by quamau
Jan 15 2020 10:13am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Re: bluetooth BMS?

Yes, they do. Once you have a reliable source for good measurement, you can easily calibrate each cell (parallel string) individually via the PC software. AFAICT, this is not yet doable via the phone app.
by quamau
Jan 11 2020 11:14am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Re: bluetooth BMS?

Newsky256: yes, it's android app, link provided by eee perhaps one page back, it was a post on Dec 10
by quamau
Jan 06 2020 6:10am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Re: bluetooth BMS?

A little question for those using recent v.3.1.1013 of the xiaoxiang app. I find this new version very important, as it provides access to all the functions, including those which required the UART box (kinda impractical once the BMS is stashed away). But... I do not find anymore choice between "cha...
by quamau
Jan 01 2020 10:44am
Forum: Battery Technology
Topic: source for 14s balance harness
Replies: 2
Views: 290

source for 14s balance harness

Hi folks, I'd appreciate a tip as to where to get a reasonably-priced 14s cable harness of decent quality for a smart JBD BMS: I am transforming one from 12s. I have ordered already from China but I'd like something that arrives here without too much of a wait. I am in Italy. Thanks for the suggesti...
by quamau
Jan 01 2020 10:40am
Forum: Battery Technology
Topic: The Cycle Satiator, universal charger for the enthusiasts
Replies: 744
Views: 131213

Re: The Cycle Satiator, universal charger for the enthusiasts

Reporting my success and full satisfaction story with the satiator. After 10+ years of cheap chargers (that never failed but were noisy, difficult to regulate, slow, plasticky, etc) I have now a couple weeks experience with the satiator. It's a different world. The thing is indeed expensive, but my ...
by quamau
Dec 19 2019 3:40pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Re: bluetooth BMS?

A quick update on my little problem above: solved super-easily by controlling everything through the new app version (3.1.1013), works like a charm and allows to modify all the parameters which were only accessible via the PC program before. Many thanks to eee291 for pointing me in the right direction
by quamau
Dec 15 2019 5:19pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Re: bluetooth BMS?

I kinda remember it was possible via PC, but this requires to reopen the pack.

Can you be so kind as to show me how it can be done via app? All I can find is an option to switch from one sensor to the other on the dashboard...

Under "Params setting" my app shows nothing related to temperature...
by quamau
Dec 15 2019 1:34pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Red LT circle on dashboard

I am about to connect everything after installing battery pack on the bike, cabling etc. When I fire up anc connect the xiaoxiang app, by tapping on the lock on the dashboard, I see it switch from the "Lock" red circle status, which I set time ago while working on the board, to another state which s...
by quamau
Nov 27 2019 6:41am
Forum: Battery Technology
Topic: The Cycle Satiator, universal charger for the enthusiasts
Replies: 744
Views: 131213

Re: The Cycle Satiator, universal charger for the enthusiasts

I am about to order a standard Cycle Satiator.

Would some kind soul confirm to me that the programmer cable I already own for the Cycle Analyst is also good for the Satiator?

Thanks in advance
by quamau
Oct 16 2019 3:43pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Re: bluetooth BMS?

Thanks, relieving news. It's quite difficult to understand from "documentation"...

Cell count is OK, I was sleepy when ordering but not too drunk :-)
by quamau
Oct 16 2019 2:48pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1274
Views: 148087

Chemistry-specific?

Hi there, I have ordered one such BMS from lithiumbatteriespcb.com, and it just showed up. In the meantime, I realized that I mistakenly (stupidly) ordered the LiFePo4 version instead of the LiIon version. While I wait for my cells to arrive, my question to you expert folks is: will I be able to cha...
by quamau
Sep 07 2019 9:49am
Forum: Items for Sale - New
Topic: N.E.S.E. the no solder module
Replies: 348
Views: 50209

Re: N.E.S.E. the no solder module

Hi agniusm,

just sent you a PM for info on a 12s4p NESE-based pack.
by quamau
Jan 01 2018 6:56am
Forum: E-Bike Technical
Topic: opening a Bafang CST... and putting it back!
Replies: 5
Views: 613

Re: opening a Bafang CST... and putting it back!

Thank you fecther, this is a thoughtful suggestion, I will take it apart once more with your words in mind.
by quamau
Dec 31 2017 4:49am
Forum: E-Bike Technical
Topic: opening a Bafang CST... and putting it back!
Replies: 5
Views: 613

Re: opening a Bafang CST... and putting it back!

Number of teeth is OK: I believe it's 42, anyway everything runs very smoothly once the motor is disassembled, or until the cap not not tightened. Opening it up again... it's obviously what I have to do, and I did it already. However, there is not much to misplace that I don't know what to change. T...
by quamau
Dec 30 2017 6:34pm
Forum: E-Bike Technical
Topic: opening a Bafang CST... and putting it back!
Replies: 5
Views: 613

opening a Bafang CST... and putting it back!

Hi there, I need help with a Bafang CST which I just opened to substitute the nylon gears. After opening, and learning that the motor was in perfect condition but for one split gear and another one with a damaged teeth, I ordered replacement gears, swapped them, mounted everything back, and... I hav...
by quamau
Aug 06 2015 3:25am
Forum: Battery Technology
Topic: Charging 16s using 2x 8s chargers - what have I done wrong?
Replies: 38
Views: 2985

Re: Charging 16s using 2x 8s chargers - what have I done wro

I have in mind a similar approach for my 16s packs. Do you guys think that charging with 2 chargers fed by two distinct power supplies is safe?
by quamau
Jul 19 2015 1:19pm
Forum: Battery Technology
Topic: is A123 8s2p 4.6Ah enough for 500W bike?
Replies: 17
Views: 1645

Re: is A123 8s2p 4.6Ah enough for 500W bike?

I'm throwing in my 2c of experience. I have a similar commute, short and steep, perhaps a bit longer than yours, and I am doing it happily since more than 2 years with A123 32113 cells (with threaded tabs). Nominal 4.4Ah, measured about 4.0Ah new, they were gray market at best. I am more than happy ...
by quamau
May 27 2015 11:06am
Forum: Items for Sale - New
Topic: Welding battery packs in Europe
Replies: 240
Views: 41026

Re: Welding battery packs in Europe

This is to give the community a feedback on the amazing service provided by this guy schwibsi (Andreas). I have just received my pack and I am extremely happy with it: perfectly done, and quickly, with utter attention to details. But what I enjoyed most in this experience is the way he handled the p...
by quamau
May 13 2015 3:45am
Forum: Battery Technology
Topic: Tesla Powerwall $350 / kwh Retail
Replies: 151
Views: 18383

Re: Tesla Powerwall $350 / kwh Retail

Hillhater: yes, I am positive of the 3kW max power limit. In detail: the limit is 3.0kW but the meter actually breaks at 3.3kW (10% tolerance); ii) there are grace periods, like 20% excess allowed for 1', the slightest excess of 0.x% will cut the power after 15'; iii) it is of course possible to hav...
by quamau
May 12 2015 10:28am
Forum: Battery Technology
Topic: Tesla Powerwall $350 / kwh Retail
Replies: 151
Views: 18383

Re: Tesla Powerwall $350 / kwh Retail

Same here (Italy). AFAIK, the 7kWh model is meant to maximize the percentage of solar energy that you use locally, and to avoid putting most of it back to the grid. There are many financial models for solar panels at work, and I guess some are (and will be) such that self-consumption becomes the mos...
by quamau
Apr 26 2015 4:13am
Forum: E-Bike Technical
Topic: CAv3 Powering off Low Voltage Cuttoff
Replies: 14
Views: 1577

Re: CAv3 Powering off Low Voltage Cuttoff

Yeah, leave it on for a couple of days at least. AFAIK, when the charger switches on/off (red/gree light), this means that one cell is high and hits HVC. The other situation is when one cell is low, so the charger will go to green and simply stay there. It's at that point that the real balancing act...
by quamau
Apr 25 2015 5:21am
Forum: E-Bike Technical
Topic: CAv3 Powering off Low Voltage Cuttoff
Replies: 14
Views: 1577

Re: CAv3 Powering off Low Voltage Cuttoff

Not even access to the balancing plug of the BMS?