BBSHD - does my 52v 20ah battery range suck?
So, I built my first and only ever ebike, a BBSHD and the battery is 52v 20ah, on a Trek Marlin 7.
Here is the battery I bought:
I thought I was getting a top of the range battery here, but it doesn't get me all that far in reality.
Today, after having charged my battery to full capacity, I travelled 5 miles to work, then back again (10 miles total) and it's already down to 75% (although it is often down much more than just 25%, sometimes it can be more like 30% or even more).
I'll get one more ride to work and back out of it, before I have to recharge again, because once I am anywhere below 50%, I always find that the battery seems to deplete much faster (or maybe it's just my imagination).
I just don't trust anything below 50% to get me there and back again.
So, I am essentially only getting two rides to work and back before I need a new charge, yet, I was under the impression that the range on a battery like this would get me way, way further.
Did I get that idea wrong, or does my battery just totally suck?
I don't ride it super fast. PAS level is set to 1-9, however, I generally only use levels 1-3. I generally try to use level 1 as much as possibly, and a lot of the time, I am riding on slight down hill slope to work, so I often just let it roll.
My bike is admittedly heavy, though, as I have two pannier bags on the back.
Do I need a new battery, or do you think this sounds normal-ish?