darlinggj
New member
Even after I fully charged the removable 48V Li ion battery from my Daymak Recumbent FT ebike (seems the same as the FTR-100 from mobility4less.com) until the light on its 54.6V charger turned from red to green, the battery's discharge port only puts out 3.0V, while the charging port shows 48.6V, while its rear and power indicator lights don't work at all. Can anyone tell me if this is typical for a battery at the end of its lifespan, or if it might be from a loose wire or short circuit that in principle could be repaired, and/or a BMS condition that could be reset (such as from a brief charge through the discharge port, like I've seen mentioned in this forum)?
This is when the battery has been turned On with a key. Turned Off, the discharge port voltage is (of course) 0 V, while the charging port voltage is 49.0V. An identical battery that I also own shows, fully charged, 54.4V across both discharge and charging ports with key On, and 54.4V across charging socket only with key Off.
I knew there was a problem when my motor cut out in mid-ride, even though the bike's display showed plenty of capacity left before it blanked out, and I hadn't noticed any loss of range or speed before then. And I knew the problem was in the battery when I switched in my good battery (I often carry a "spare") and it worked again.
All suggestions welcome. Seeing as the thing costs over C$1000, I'm ready to tinker a bit if it's not hopeless (or fatal). See also:
mobility4less.com
This is when the battery has been turned On with a key. Turned Off, the discharge port voltage is (of course) 0 V, while the charging port voltage is 49.0V. An identical battery that I also own shows, fully charged, 54.4V across both discharge and charging ports with key On, and 54.4V across charging socket only with key Off.
I knew there was a problem when my motor cut out in mid-ride, even though the bike's display showed plenty of capacity left before it blanked out, and I hadn't noticed any loss of range or speed before then. And I knew the problem was in the battery when I switched in my good battery (I often carry a "spare") and it worked again.
All suggestions welcome. Seeing as the thing costs over C$1000, I'm ready to tinker a bit if it's not hopeless (or fatal). See also:

Fat Tire Folding Electric Recumbent Tricycle
For other types of electric tricycles, please click here! Model: FTR-100 Fat Tire Folding Electric Recumbent Tricycle You can use it as a regular tricycle; simply just pedaling (good for exercise), or you can use it as a scooter; with the Read More
