A Bike That Does Exist, by PEM

[PedalUma]

@Gionnirocket, All I can say now to address your valid question is that when charging in the Off position charging goes quickly to 44V and then slows way down to reach 49V and the LED on the charger goes from red to green and it stops charging. When while still on the charger if you toggle the battery On the charger LED goes from green to red and it charges to 54.6V on a 48V nominal battery and the charger's LED goes green again. My rep said to do that about once per season for a typical rider to load balance the cells. But to only do it just before a ride so the battery is not sitting at 100%. He said that it is like pressure in a ball in that you don't want to store it fully inflated.
She is stopped in the town of Newport that appears to only have one business and 68 residents. It is a room with an honor system pool hall. When you take snacks you leave money in a slot.

Google Maps

Find local businesses, view maps and get driving directions in Google Maps.

www.google.com

 

[Gionnirocket]

I'm not sure how the term load balancing is being used here but load typically refers to discharging and/or use of electricity on a multi phase system. Maybe he meant Top Balancing? That's what most passive balance BMS use.
Then depending on how you want to calculate SOC (actual vs usable) ... 49v is somewhere between 70% and 80% on a 48v system
That said if that's how your batteries work it's pretty neat that the standard charge is near 80% and that a full charge requires user intervention.
If so that's very good for the battery and for safety... but that might also be a real pain in the ass if you need over 80% on a daily basis.
That, that said... 80% works well for me, even on my smaller 10Ah battery.

 

[PedalUma]

I'm not sure how the term load balancing is being used here but load typically refers to discharging and/or use of electricity on a multi phase system. Maybe he meant Top Balancing? That's what most passive balance BMS use.
Then depending on how you want to calculate SOC (actual vs usable) ... 49v is somewhere between 70% and 80% on a 48v system
That said if that's how your batteries work it's pretty neat that the standard charge is near 80% and that a full charge requires user intervention.
If so that's very good for the battery and for safety... but that might also be a real pain in the ass if you need over 80% on a daily basis.
That, that said... 80% works well for me, even on my smaller 10Ah battery.

When @pem first took her bike from her Summer place in Colorado to her Winter training grounds in the Texas Hill Country, she loaded it up with her camping gear and went on a brief camping trip. She had one 48V 10Amp battery at the time with 35e cells. She did 75 miles of hills and said that she never had range anxiety. Now she has a back up 7Amp battery in the bottom of a pannier. She only used it once for a Rocky Mountain climb day in bear country. She was only using Eco mode. Now she is liking City mode level 2 and 3 out of 5. So, she is only drawing 10 amps. She could go up to Sport mode, level 5 and draw 18 amps. The controller limit is 20 amps so I set her limit just under that and kept the limp mode temp sensor to 100 C. If it hits that temp it only draws 30% until it cools.

 

[Gionnirocket]

When @pem first took her bike from her Summer place in Colorado to her Winter training grounds in the Texas Hill Country, she loaded it up with her camping gear and went on a brief camping trip. She had one 48V 10Amp battery at the time with 35e cells. She did 75 miles of hills and said that she never had range anxiety. Now she has a back up 7Amp battery in the bottom of a pannier. She only used it once for a Rocky Mountain climb day in bear country. She was only using Eco mode. Now she is liking City mode level 2 and 3 out of 5. So, she is only drawing 10 amps. She could go up to Sport mode, level 5 and draw 18 amps. The controller limit is 20 amps so I set her limit just under that and kept the limp mode temp sensor to 100 C. If it hits that temp it only draws 30% until it cools.

10a is a heavy load to be using continuously. If she draws that her 10Ah battery would last an hour.
I'm typically under 4a and usually averaging around 1.5A and that's with a 1000w / 75lb mid drive. My battery is undersized for my motor but with the high output GA cells it works. I've gone over 30 miles with it and used about 60%. But terrain and speed mean a lot so it's probably not apples to cucumbers
On planned longer rides I just take the stock 21Ah battery