Burgerman wrote:Almost. If I lose 1 battery light, thats it. I then would connect a tiny cell log and wtch cell voltage and be sure it stays at 3.00V lowest cell or I stop... That part at the end happens fast.
BUT THERES NO NEED. If you fit adequate Ah. There isnt enough hours in a day in reality, that allows me to get low enough to worry about it! The battery is more capable than I am. Thats the whole point of going to lithium as it allows this kind of Ah in the same space. And so 5x the range.
Some like expresso, have iron backsides, and can do 70 miles in 1 day. (68 on this screenshot by GPS) Partly helped by having a 12mph chair and getting up very early thats 108km... Snaker did 78 I think. Thats 124km.
The whole point of lithium is that it is more energy compact allowing a 2.5x increase in capacity. So fitting useless lead brick replacement lithium bricks completely misses the point! Those are just the same Ah as the lead! Nothing gained. And problematic BMS... And so short life. If they work reliably at all.
It's impossible to make a comparison with Expresso ride and what I'm doing in mountains.
I.e, this afternoon, I hike for 5h. Expresso 6h.
Expresso ride his wheelchair for more than 100km. During 6h
Me, this afternoon, only 12km. During 5h.
Why a so small distance for me ? Because I start at 1300m ASL, and arrived at 1850m. My D+ for today is not 550m, but 680m. My speed is very low because it's not so easy to go where I go evan with an X8.
And, once again, each kg saved is fantastic, whatever where you saved these kg. But I agree, it's better to saved them at high point.