Only have my E-Bike for around a month now and already having problems with battery

Slepx

New Member
I have the Ancheer Folding Electric Mountain Bike, and already the battery is messing up. I’ve been plugging it in every night all night and it doesn’t go above two bars. Then when I actually start riding it it immediately goes down to one bar.
 

6zfshdb

Well-Known Member
What happens if you continue to ride with only one bar? If you can ride the bike for a significant distance before it shuts down, the problem may be with the gauge or wiring and not the battery.
 

Slepx

New Member
What happens if you continue to ride with only one bar? If you can ride the bike for a significant distance before it shuts down, the problem may be with the gauge or wiring and not the battery.
The electric lasts a minute or so then it shuts off forcing me to pedal with no assist. And it’s extremely hard to get going with no electric
 

Solom01

Active Member
This brand probably doesn't have the best battery cells in the world, but if you were trying to stress the cells you couldn't have done much worse than constantly leaving it charging every night. Hope you get a new battery under warranty and if you do you may want to take a look on how to maintain lithium batteries.
 

harryS

Well-Known Member
It is either a failed battery or a charger that went bad. If you or someone else can put a meter on the charger plug, you'll know which one needs to be replaced under warranty.
 

Thomas Jaszewski

Well-Known Member
Bars are meaningless. Those on board meters are about 15 cents. The only way to intelligently discuss or trouble shoot is to have actual battery voltage readings. Please use a multimeter. Test the battery. Usually someone we know has one. But every EBike owner ought to invest $20 and have an auto ranging auto off multimeter. These days they are cheap and still accurate enough. We can learn to test for shorts and wire continuity as well as test throttle and brake cutout functions.

It may be a simple problem. But more info is needed.
 

AlanDB

Well-Known Member
Bars are meaningless. Those on board meters are about 15 cents. The only way to intelligently discuss or trouble shoot is to have actual battery voltage readings. Please use a multimeter. Test the battery. Usually someone we know has one. But every EBike owner ought to invest $20 and have an auto ranging auto off multimeter. These days they are cheap and still accurate enough. We can learn to test for shorts and wire continuity as well as test throttle and brake cutout functions.

It may be a simple problem. But more info is needed.
I don't know anything about multimeters, but with 3 ebikes and 4 batteries (trike has 2 batteries) it sounds like it would be good to have one in my tool chest. Is there an inexpensive one on Amazon you would recommend?
 

Thomas Jaszewski

Well-Known Member
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harryS

Well-Known Member
And if you put a meter on it, a 36V lithium ion battery will be no higher than 42,0 volts at max charger, and will run down to about 31V volts before the bike shuts it off.

Your charger should read 42.0 volts when not plugged into the battery, Most inexpensive meters will read to 2%, which is this case is about .1 volt.
 

Ebiker01

Active Member
Archer ebikes...
Aren’t those like missing a wheel or a pedal when being shipped ? And that is in the good cases.

Work harder , save up and buy a new , quality ebike.

And throw away that so called “ebike” . That is for your safety.
 

AlanDB

Well-Known Member
Archer ebikes...
Aren’t those like missing a wheel or a pedal when being shipped ? And that is in the good cases.

Work harder , save up and buy a new , quality ebike.

And throw away that so called “ebike” . That is for your safety.
It is Ancheer, not Archer. Although your point about low cost ebikes and the quality issues one might expect is correct, I think your comment is a bit harsh.