- Wed Jul 17, 2019 6:35 am
#12906
It was about ~15C outside during all 3 runs. Drove 4.92 km, went back home and charged up to full before driving the same exact route again for second and third test. The "Bat. level end + 10 min" means I waited 10 minutes before reading the battery level at the end of the run because the battery .. I dont know.. does something and the level increases. Something something chemical reactions and voltage balancing. I weigh 83 kg (without backpack and stuff). The road was well mixed with both very smooth surfaces and somewhat rough brick like things.
(Test 1)
[
Tyre pressure: ~ 4.5 bar
Bat. temp at start: 25C
Bat. temp at end: 32/33C
Bat. level start: 41.2 V, 7807 mah, 100%
Bat. level end: 38.41V, 5769 mah, 73%
Bat. level end + 10 min: 38.9V, 6140 mah, 78%
]
(Test 2)
[
Tyre pressure ~ 5.5 bar
Bat. temp at start: 26/27C
Bat. temp at end: 32/33C
Bat. level start: 41.21 V, 7805 mah, 100%
Bat. level end: 38.43 V, 5790 mah, 74%
Bat. level end + 10 min: 38.93V, 6155 mah, 78%
]
(Test 3)
[
Tyre pressure ~ 3.5 bar
Bat. temp at start: 26/27C
Bat. temp at end: 33/33C
Bat. level start: 41.18V, 7803 mah, 100%
Bat. level end: 38.17 V, 5616 mah, 71%
Bat. level end + 10 min: 38.71 V, 6000 mah, 76%
]
Conclusion: The difference between 4.5 and 5.5 bar is pretty much negligible, a fraction of a percent, considering I forgot my water bottle and was about 0.5 kg lighter and the ride was considerably harder. At 3.5 the difference was, I would say, significant, but the ride was, as expected, a bit smoother than 4.5. I personally dont think the difference in ride smoothness was enough for the range lost and pumped the tyres back to 4.5 (or more like 4.3 because I am super indecisive.)