Burgerman wrote:You bought the wrong batteries. 5.5mOhm no use!
quadcopter wrote:The manual says the batteries are perfect for wheelchairs and have 600 cycles of 100% discharge.
I'm mixed up.
The manual says the batteries are perfect for wheelchairs and have 600 cycles of 100% discharge.
shirley_hkg wrote: Could it be a storage issue ?
You don't seem to use it in winter , do you ?
steves1977uk wrote:You might get 600 cycles if you hardly move about and watch TV all day, otherwise no chance.
Yes, I rarely go out in winter on my power wheelchair. The wheelchair stays in my room where temperature is about +25 C.
quadcopter wrote:Hi to All.
I've got problem with batteries again.
They worked perfectly. I easy run 15-17 km. I go out 1-2 times a week.
3 June 2018 (year after purchase) I had trip about 17 km. At the end there was half of charge. Wonderful.
In two weeks I have short trip and noticed the charge drop more than usual.
In other two weeks (29 June 2018) I could run only 6 km.
So just in one month (or even less) the range dropped drastically.
Now I can run only 5 km.
I don't understand what's going on. New batteries and proper charger but such a fail.
Could my wheelchair damage the batteries?
?
shirley_hkg wrote:Did it happen after only ONE 17km drive since last winter ?
Burgerman wrote:They may improve a little with some shallow 1 or 2 km drives, and 24 hour charge cycles, maybe 4 or 5 times to see an improvement. Because they have likely become a little sulfated due to the way you store them and dont use the chair. LEAVE THEM ON CHARGE long after the green ready ligh comes on. For 48 hours each time you return. They are then on float. Float will remove any sulfation that they have that IS removable. Not all of it will be because it turns into larger non conductive crystals over time if it is allowed to do so.
If you do this 5 or 6 times or so, and they dont improve then you have likely found out how crappy cheap lead batteries are.
With your ProSport plugged in properly, it will automatically/ fully charge your batteries
while it conditions and extends the life of your batteries. Always leave your charger plugged
in to reduce sulfate build-up allowing your batteries to be fully charged and maintained
for your next fishing trip.
Burgerman wrote:I use them in my QUADCOPTER. (I note your name so presume you too have these!)
Burgerman wrote:Dont know what those do.
Correct charge voltage is 13.8 to 14.1V CV stage. (best 13.95v) Less if warmer than 68f.
http://www.wheelchairdriver.com/MK1.pdf
Yesterday I measured the SoC at the XLR plug after disconnecting it from the charger for +4hrs, and it was (according to my meter) 26.28v.
quadcopter wrote:Total charging time for C10 charger is 14 hours.
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