Search found 85 matches

by passpato
Jan 24 2020 10:02am
Forum: E-Vehicles General Discussion
Topic: Ping 36 volt 10 AH
Replies: 1
Views: 437

Ping 36 volt 10 AH

I just wanted to sing the praises of Li Ping. My ping 36v 10ah battery is 8 years old now. Its installed on a Heinzmann powered Specialized mountain bike. It doesn't get used that much these days but has seen many deep cycles over 20 miles where the bms has cut power. I connected a Turnigy "watts up...
by passpato
Dec 18 2015 3:38am
Forum: Battery Technology
Topic: How does a BMS work?
Replies: 3
Views: 603

Re: How does a BMS work?

Thanks Amberwolf. As always you put a lot of effort in to your replies. It is appreciated.
by passpato
Dec 17 2015 5:36am
Forum: Battery Technology
Topic: How does a BMS work?
Replies: 3
Views: 603

How does a BMS work?

I am wondering exactly how a bms works ? I understand that each cell is connected individually by the 12 (in my case) wires and I think that the leds alone bleed down the voltages on the individual cells untill they are equal. I know that the mosfets are opened and closed to control access to the ba...
by passpato
Dec 16 2015 4:46pm
Forum: Battery Technology
Topic: Ping 36 v 10 ah battery not charging
Replies: 19
Views: 1307

Re: Ping 36 v 10 ah battery not charging

It turns out the sells are ok. They are very difficult to squeeze that last bit of charge into them. I used an imax in the end. Ping is now sending a new bms as the old signalab will not allow charging. Does anyone know what goes wrong with this curcuit ? The fet seems to be working. I wonder if it ...
by passpato
Dec 09 2015 10:33am
Forum: Battery Technology
Topic: charging a ping with an Imax
Replies: 2
Views: 307

charging a ping with an Imax

Does anyone know exactly haw to set an Imax to singularly cell charge my Ping 36v 10ah ? Its max charged voltage is 3.65 and it will charge at around 3.8v .I know how to connect to my cells through the balance wires but I can't find a correct setting for my cells and I'm confused by its menus. It al...
by passpato
Dec 07 2015 9:13am
Forum: Battery Technology
Topic: Ping 36 v 10 ah battery not charging
Replies: 19
Views: 1307

Re: Ping 36 v 10 ah battery not charging

Ping cells are $9.30 or £6.17 each. Its 10 A/H so 9.30 x 2 = 18.60 18.60 x4 = $ 74.40 or £49.36 + shipping but I also need a bms.
by passpato
Dec 06 2015 6:09am
Forum: Battery Technology
Topic: Ping 36 v 10 ah battery not charging
Replies: 19
Views: 1307

Re: Ping 36 v 10 ah battery not charging

Can anyone recommend an economy single cell Charger for my Pings ? I'm in the Uk so 240v 50 hz . Or I have a PSU from a Computer to power a buck.
by passpato
Dec 06 2015 3:09am
Forum: Battery Technology
Topic: Ping 36 v 10 ah battery not charging
Replies: 19
Views: 1307

Re: Ping 36 v 10 ah battery not charging

Thanks Guys. it looks like this battery is near end of life.Or does anyone have a donor battery in the uk and can help us? Worth a try I suppose. My friend doesn't need a full charge 6 or 7 a/h would do . One last question. Ping tell me to charge at 3.8 -3.9 v . All the single cell chargers I can fi...
by passpato
Dec 05 2015 4:09am
Forum: Battery Technology
Topic: Ping 36 v 10 ah battery not charging
Replies: 19
Views: 1307

Re: Ping 36 v 10 ah battery not charging

I have charged the first 4 cells at 39v as directed by Ping. I charged untill the current fell back on my power supply. It took a long time to charge each of these cells. I think they have a high resistance to charge. After resting these cells dropped back to around 3.3 v. Ping told me to use their ...
by passpato
Nov 28 2015 7:12am
Forum: Battery Technology
Topic: Ping 36 v 10 ah battery not charging
Replies: 19
Views: 1307

Re: Ping 36 v 10 ah battery not charging

Ping explained the charging period for these cells. They raise to 3.2 quickly and remain around there for a long time rising slowly. After they reach 3.5 they rise quickly to 3.9 . This can take 10 hours at 1 amp for each cell. After charging each of my 4 cells for 6 or 7 hours from the 3.2 level an...
by passpato
Nov 26 2015 3:46pm
Forum: Battery Technology
Topic: Ping 36 v 10 ah battery not charging
Replies: 19
Views: 1307

Re: Ping 36 v 10 ah battery not charging

I emailed Ping and they are helping me. Its great to have support but it takes 24hours to get replies because of time difference between uk and China. I think the battery is a Ping 3.2 . The ebike was left for over 6 months and the first 4 cell packs run the BMS (signalab).This has taken these to be...
by passpato
Nov 23 2015 7:45am
Forum: Battery Technology
Topic: Ping 36 v 10 ah battery not charging
Replies: 19
Views: 1307

Ping 36 v 10 ah battery not charging

My friends 36v 10 a/h Ping battery will not charge. It is about 5 years old now. I thinkthe BMS is stopping the current flow. I have an identical battery and I am able to test things by swapping around and/or testing with a multimeter. The Charger works ok on the other battery so I'm ruling that out...
by passpato
Dec 11 2014 5:39am
Forum: E-Vehicles General Discussion
Topic: How to increase speed of Currie Izip Path E3+
Replies: 7
Views: 1275

Re: How to increase speed of Currie Izip Path E3+

Doesn't the Curry use the bicycle gears? It drives the chain I believe. If so, you could change the gear cassette on the back wheel. To speed the motor up you would have to increase the battery voltage if the speeed controller can take it.
by passpato
Nov 18 2014 5:17am
Forum: Battery Technology
Topic: Quality 36volt lifepo4 charger
Replies: 13
Views: 1279

Re: Quality 36volt lifepo4 charger

dnmun wrote:was that the problem you had with the original charger too?

did you test it to see if there is AC inside the case behind the fuse?
The original charger is toast. It wouldn't charge and I shorted it and popped several components on the board. Mr Ping sent a replacement when it arrived DOA.
by passpato
Nov 14 2014 8:26am
Forum: Battery Technology
Topic: Quality 36volt lifepo4 charger
Replies: 13
Views: 1279

Re: Quality 36volt lifepo4 charger

Update. The charger stopped working again so I took the covers off and probed around with an ohms meter to test connections. I was amazed to find the supply lead is faulty. It looks bulletproof and has never been miss handled. I replaced it with a spare from a computer and its working again. If anyo...
by passpato
Oct 25 2014 4:43am
Forum: Battery Technology
Topic: Quality 36volt lifepo4 charger
Replies: 13
Views: 1279

Re: Quality 36volt lifepo4 charger

Its working at the moment and I'm reluctant to mess with it. I understand there is a problem with the switching thyristor not earthing ? but I cant see it. It switches between 120 and 240 volts. looking at my old blown up one, There are two 3 pin transistors I think they are thermistors touching the...
by passpato
Oct 22 2014 2:39am
Forum: Battery Technology
Topic: Quality 36volt lifepo4 charger
Replies: 13
Views: 1279

Re: Quality 36volt lifepo4 charger

how do you know the first charger is dead? when you refer to external wires, do you know which wires? The first charger would not work when it arrived. I had another PIng at the time and that ones charger did work. After Mr Ping sent a replacement I opened it up. I can't remember what I did to it b...
by passpato
Oct 21 2014 5:35pm
Forum: Battery Technology
Topic: Quality 36volt lifepo4 charger
Replies: 13
Views: 1279

Re: Quality 36volt lifepo4 charger

The first charger was Dead on Arrival. Mr Ping replaced this one. The replacement shows the red light when connected but did not charge . I managed to make it work after I got it back from the TV repair man by picking it up and moving the external wires around. Im not sure what I did but I now suspe...
by passpato
Oct 19 2014 3:51am
Forum: Battery Technology
Topic: Quality 36volt lifepo4 charger
Replies: 13
Views: 1279

Quality 36volt lifepo4 charger

I am looking for a new charger for my Ping lifepo4 36 volt 10ah battery. I have replaced the charger twice now and I have lost confidence in the Ping charger. I have had the charger looked at by a tv technician but he says the price of a new one doesn't warrant too much investigation. I then shook i...
by passpato
Mar 08 2014 8:10am
Forum: E-Vehicles General Discussion
Topic: Yorkshire England
Replies: 6
Views: 556

Re: Yorkshire England

I have found some information about a problem with the crimp joints in the battery conections. I suspect this is the fault but Im unable to get to the bike. Im waiting for a reply from Tench.
by passpato
Mar 07 2014 3:12am
Forum: E-Vehicles General Discussion
Topic: Yorkshire England
Replies: 6
Views: 556

Yorkshire England

Is there anyone out there that can help a friend in Yorkshire ? He has an electric Zero X electric motorbike with battery problems and he could use a hand to diagnose the problem.He says "some of the cells are not charging" I am down in Somerset and I can't sort it from here. I was thinking of sendi...
by passpato
Feb 06 2014 1:52pm
Forum: E-Bike General Discussion
Topic: I want to upgrade my hub motor, some advice please?
Replies: 15
Views: 1369

Re: I want to upgrade my hub motor, some advice please?

The motor you have is a 400watt. This is its rated power. The law in europe prevents people from riding electric vehicles on the roads with a motor that runs all day (rated power) at over 250 watts on the road (500watts in Germany on cycle routes) Your motor is using a 1000 watts to climb that hill ...
by passpato
Nov 23 2013 9:29am
Forum: E-Bike General Discussion
Topic: Heinzmann gear removal
Replies: 1
Views: 262

Heinzmann gear removal

:roll: My Heinzmann motor has a worn out plastic gear it its reduction gears.I have spare worn out motors with metal gears I would like to use. The problem is removing the gear from the shaft. I have seen the thread on the gear on the motor shaft spinning but has anyone removed this gear when it is ...
by passpato
Sep 15 2012 2:33pm
Forum: E-Bike Technical
Topic: Heinzmann charger
Replies: 2
Views: 288

Re: Heinzmann charger

. So we are looking for an economical replacement charger. Can anyone help with that? What does "delta voltage" mean? The Heinzmann system measures half voltage from the battery at the mid cells in the pack.This is fed back through signal wires to the controller ( where the charger connects) Does th...