Cyclamatic Battery query.

[pedelecvirgin]

Hi all, I have a Cyclamatic Power Plus, 24v 10ah battery. It is not a new battery, I assume the same age as the bike which is 3 or 4 years. If I go for a shortish ride say 8 miles, when I get back to charge the battery it shows as fully charged on the charger. The battery has to be almost at the end of its low power voltage before it will let me charge it. I do not have a voltage checker or any thing like that. Just wondered if any one else had come across a similar issue?

Thanks. pedelecvirgin

 

[OldBob1]

Hi have you use the bike until it cuts out, that will at least give you a good idea of the range and condition of the battery.
With an E-bike electrics you will need to use a meter at some point.

 

[pedelecvirgin]

Hi only after I have been out on the second or subsequent trips has the battery cut out. In total about 21 miles. I can get one of these tomorrow if you think it would do the job? And you could guide me through what an d where to test.

http://www.screwfix.com/p/lap-mas830b-digital-multimeter-600v/75337

Thanks for your reply.

pedelecvirgin

 

[pdarnett]

That multimeter is fine, just make sure you've got it on the DC voltage setting before probing the battery! 21miles on a 24v 10ah battery doesn't sound too bad to me though.

 

[pdarnett]

if the bottom of the battery looks like this:

The red wire from the meter plugged into V and the black wire plugged into COM. Red (+) goes to the + of the battery with the black (-) going to - of the battery should give you a reading. Just don't short out the battery at any point! Put the meter on the DC 200V range (left of centre, ten to twelve) i.e. not the range that has a ~ symbol, thats AC.

 

[pedelecvirgin]

Wow thanks a lot.

The trouble is, that if I, say do a couple of small trips, I cant then charge the battery, to allow me to go on a longer one. As the charger says its charged, green and not red light.

I will do test later today and post results.


pedelecvirgin

 

[pedelecvirgin]

Hi the only reading I get is 01.1.
Have checked following your instructions and that is it.

Looks a bit wrong

 

[Deleted member 4366]

You've used the wrong scale. Show a picture of your meter, and we should be able help.

 

[pedelecvirgin]

hi this is it

 

[pedelecvirgin]

sorry it is upside down, curse of the ipad. Hope its clear enough

pedelecvirgin

 

[pdarnett]

Oh and make sure the battery is in the "on" position with the key.

 

[Deleted member 4366]

You're on 200 milivolts instead of 200v. The 200v is at 8 o'clock.

 

[pedelecvirgin]

d8veh if i go to the setting you suggest, I get a strange reading of 52.6
if i turn it to the 600 at 11 oclock I get a reading of 28.

 

[Deleted member 4366]

Sorry, I didn't read it right. Yours doesn't have a 200v scale. Use the 600v scale at 11 O'clock.

28v is about right. It should be 29v fully charged.

 

[pedelecvirgin]

Thanks I had just charged it so all good there. My initial post though was, why will in no let me charge it when say i have done only 1/2 of the mileage the battery is capable of doing?

 

[Deleted member 4366]

I can only guess that you have a faulty connection somewhere, or a faulty charger.