Hello, long time lurker here.
About 18 months ago I bought a second hand Pro Rider e-Wayfarer folding bike, which was originally bought in April 2013. It had a 36v 10ah Phylion battery, which was giving me about 13/14 miles (depending on terrain, weather and how I rode it)
More recently it has started to run very low when I did the trip to our nearest large town - a 12 mile round trip, so I decided it was time to invest in a new battery. I decided not to have the original re-celled, as it was still good as a backup.
I bought this battery http://enerprof.de/shop/batteries/ebike-and-pedelec-batteries/enerpower-pedelec-battery-36v-145ah-522wh/ from the retail arm of Enerpower in Germany. It has Samsung INR18650-29E cells.
I was hoping that with a brand new battery and the increase in Ah I would get a range of around 25 miles
It came a week ago and after switching it on briefly to make sure it worked, I charged it fully (7 hours with my existing 2 amp charger) and then the next day I did my 12 mile trip and was disappointed to find that it was down to 1 bar on the display well before I arrived home. Mindful of not over stressing the battery, I walked it up the last steep hill to get home.
I'd read that a battery sometimes needs a few charges to reach full power, so I persevered. I have now charged it 4 times and this last time I tried a 30 hour charge, in case there was a balancing issue.
I have seen a very minor improvement - the last 12 mile ride today it was fluctuating between 2 bars and 1 bar on the last half mile before home.
I have measured the voltage after charging and it reads 41.5v, exactly the same as the Phylion does. On my third ride when it was on 1 bar it was at 36v and today on 1 to 2 bars it was at just under 37v.
It seems to stay much longer on 5 bars than the old Phylion, but then when it starts to lose charge it seems to drop off far more rapidly than the Phylion did.
Is it time to think of returning it to Germany?
About 18 months ago I bought a second hand Pro Rider e-Wayfarer folding bike, which was originally bought in April 2013. It had a 36v 10ah Phylion battery, which was giving me about 13/14 miles (depending on terrain, weather and how I rode it)
More recently it has started to run very low when I did the trip to our nearest large town - a 12 mile round trip, so I decided it was time to invest in a new battery. I decided not to have the original re-celled, as it was still good as a backup.
I bought this battery http://enerprof.de/shop/batteries/ebike-and-pedelec-batteries/enerpower-pedelec-battery-36v-145ah-522wh/ from the retail arm of Enerpower in Germany. It has Samsung INR18650-29E cells.
I was hoping that with a brand new battery and the increase in Ah I would get a range of around 25 miles
It came a week ago and after switching it on briefly to make sure it worked, I charged it fully (7 hours with my existing 2 amp charger) and then the next day I did my 12 mile trip and was disappointed to find that it was down to 1 bar on the display well before I arrived home. Mindful of not over stressing the battery, I walked it up the last steep hill to get home.
I'd read that a battery sometimes needs a few charges to reach full power, so I persevered. I have now charged it 4 times and this last time I tried a 30 hour charge, in case there was a balancing issue.
I have seen a very minor improvement - the last 12 mile ride today it was fluctuating between 2 bars and 1 bar on the last half mile before home.
I have measured the voltage after charging and it reads 41.5v, exactly the same as the Phylion does. On my third ride when it was on 1 bar it was at 36v and today on 1 to 2 bars it was at just under 37v.
It seems to stay much longer on 5 bars than the old Phylion, but then when it starts to lose charge it seems to drop off far more rapidly than the Phylion did.
Is it time to think of returning it to Germany?