Gettin' there, but still a work in progress on a June 2020 bike.
Major additions/replacements include:
2nd Battery is a 48V, 17.5ah from BafangUSA Direct. It's mounted where the original Rad Battery was
on the back of the seat tube, and the lighter OEM Rad 14Ah battery has been moved up to the rack.
Both battery carriers have Rad harness compatible electrical connectors, presently switched by hand
but I'm considering easier switching options for a winter project (OEM warranty has now expired,
no reason not to cut into Rad harnesses now to change connectors to something I like better).
I have used two different brands of the electronic parallel battery connectors in the past in other
applications and both failed. I don't need that when I'm 50 miles from home so I'm considering a
simple, reliable marine grade A-B switch with at last a 50 Amp rating (I believe in overkill in some
areas). That battery was not the cheapest I could find, I chose it because of name brand recognition
in hopes they would stand behind the product in case something went wrong (as will happen with
a small percentage of lithium ion battery packs from even the best manufacturers/suppliers) and
it has lived up to expectations. Charging it to 80% yields the same ~14Ah capacity as the Rad OEM
battery and should improve its cycle life (so I can abuse it in other ways). Unfortunately that
particular size appears to no longer be available on their website (maybe just temporarily?):
http://bafangusadirect.com/collections/batteries
The swept handlebars are Jones SG 2.5 Loop Aluminum H-Bars in 710mm length (Single Gauge with
a 2.5 inch rise). Grips are Jones Kraton in standard length (for their 660mm bars), you don't need the
long ones on this setup, in fact you have to cut down the right side grip. My OEM Rad cables were
barely long enough to work with the front steering riser all the way up without having to be replaced
with longer ones. Maximum width is 29 inches tip to tip, way more comfortable than the stock flat bars:
http://jonesbikes.com/jones-h-bar-sg-2-5-loop-aluminum/
The pimped out bike now weighs 120+ pounds (54+ kg) with both batteries on board as I also routinely carry a lot of stuff like trail maintenance gear including folding saw(s), hand loppers and digging tools. I occasionally add a Rad Large Basket or Platform with plus size milk crate(s) to the front rack when doing more serious trail work to be able to carry two chainsaws (the spare oil, gas, saw batteries and bigger trenching tools get carried in back rack mounted side baskets/panniers to minimize overloading the front rack in that configuration).
Range (I ride for exercise, often on canal and rail trails, so Mode 1 [with occasional throttle blips] suits me fine much of the time):
Longest continuous run with maximum conservation efforts on the Rad OEM 14Ah battery = 63.5 miles
Theoretical maximum on both batteries if get the same efficiency out of the 17.5Ah 2nd battery = 139 miles
Farthest actual one day out & back trip to date = 102 miles
Major additions/replacements include:
2nd Battery is a 48V, 17.5ah from BafangUSA Direct. It's mounted where the original Rad Battery was
on the back of the seat tube, and the lighter OEM Rad 14Ah battery has been moved up to the rack.
Both battery carriers have Rad harness compatible electrical connectors, presently switched by hand
but I'm considering easier switching options for a winter project (OEM warranty has now expired,
no reason not to cut into Rad harnesses now to change connectors to something I like better).
I have used two different brands of the electronic parallel battery connectors in the past in other
applications and both failed. I don't need that when I'm 50 miles from home so I'm considering a
simple, reliable marine grade A-B switch with at last a 50 Amp rating (I believe in overkill in some
areas). That battery was not the cheapest I could find, I chose it because of name brand recognition
in hopes they would stand behind the product in case something went wrong (as will happen with
a small percentage of lithium ion battery packs from even the best manufacturers/suppliers) and
it has lived up to expectations. Charging it to 80% yields the same ~14Ah capacity as the Rad OEM
battery and should improve its cycle life (so I can abuse it in other ways). Unfortunately that
particular size appears to no longer be available on their website (maybe just temporarily?):
http://bafangusadirect.com/collections/batteries
The swept handlebars are Jones SG 2.5 Loop Aluminum H-Bars in 710mm length (Single Gauge with
a 2.5 inch rise). Grips are Jones Kraton in standard length (for their 660mm bars), you don't need the
long ones on this setup, in fact you have to cut down the right side grip. My OEM Rad cables were
barely long enough to work with the front steering riser all the way up without having to be replaced
with longer ones. Maximum width is 29 inches tip to tip, way more comfortable than the stock flat bars:
http://jonesbikes.com/jones-h-bar-sg-2-5-loop-aluminum/
The pimped out bike now weighs 120+ pounds (54+ kg) with both batteries on board as I also routinely carry a lot of stuff like trail maintenance gear including folding saw(s), hand loppers and digging tools. I occasionally add a Rad Large Basket or Platform with plus size milk crate(s) to the front rack when doing more serious trail work to be able to carry two chainsaws (the spare oil, gas, saw batteries and bigger trenching tools get carried in back rack mounted side baskets/panniers to minimize overloading the front rack in that configuration).
Range (I ride for exercise, often on canal and rail trails, so Mode 1 [with occasional throttle blips] suits me fine much of the time):
Longest continuous run with maximum conservation efforts on the Rad OEM 14Ah battery = 63.5 miles
Theoretical maximum on both batteries if get the same efficiency out of the 17.5Ah 2nd battery = 139 miles
Farthest actual one day out & back trip to date = 102 miles