Hello. First time post here. I researched previous posts and did not find a scenario exactly like this: I wanted take my Aventon Level to remote locations - where I would not have access to a reliable source of fixed power. Therefore, I purchased a Jackery 240 (delivering 200 usable watt hours of power) power station and a Renogy 50 watt solar suitcase. The total setup will weigh a total of 5.5 kilograms / 12.2 pounds. The Jackery’s capacity is only 1/3 of the 672 watt hour / 48 volt Aventon battery, however, my goal is two-fold:
1) While moving (and throughout the day), utilize the solar panel to charge the Jackery power station to power/connect the Aventon’s 3AH AC charger back to the e-bike battery.
2) Having the flexible option to use a power station and solar for non-biking uses.
Assumptions:
I calculated the following:
a) Base battery: 672 watt hours for = 50 miles (13.4 watts/mile)
- already tested this
b) Jackery 240: 200 usable watt hours = 15 miles
c) 50 watt solar panel: Delivering 50 watts per hour over 9 hours at 60% efficiency = 20 miles
Objective:
Increase the base range from 50 miles to 85 miles. To achieve these numbers, I’ll have to hypermile; high tire pressure, pedal to PAS 1, self-power up hills, and keep speeds to between 12 and 15 mph.
Questions:
1) Is this even possible / worth it?
2) Are my assumptions reasonable - to increase range by 35 miles?
3) Would the bike’s controller and BMS allow for onboard solar charging?
4) If so, am I potentially shortening the life of the battery / risking a potentially unsafe high temperature event; thereby requiring a battery temperature monitoring solution?
I was just fascinated by the idea of doing a project like this with low cost off-the-shelf / plug-and-play components.
1) While moving (and throughout the day), utilize the solar panel to charge the Jackery power station to power/connect the Aventon’s 3AH AC charger back to the e-bike battery.
2) Having the flexible option to use a power station and solar for non-biking uses.
Assumptions:
I calculated the following:
a) Base battery: 672 watt hours for = 50 miles (13.4 watts/mile)
- already tested this
b) Jackery 240: 200 usable watt hours = 15 miles
c) 50 watt solar panel: Delivering 50 watts per hour over 9 hours at 60% efficiency = 20 miles
Objective:
Increase the base range from 50 miles to 85 miles. To achieve these numbers, I’ll have to hypermile; high tire pressure, pedal to PAS 1, self-power up hills, and keep speeds to between 12 and 15 mph.
Questions:
1) Is this even possible / worth it?
2) Are my assumptions reasonable - to increase range by 35 miles?
3) Would the bike’s controller and BMS allow for onboard solar charging?
4) If so, am I potentially shortening the life of the battery / risking a potentially unsafe high temperature event; thereby requiring a battery temperature monitoring solution?
I was just fascinated by the idea of doing a project like this with low cost off-the-shelf / plug-and-play components.
