Guru
Joined: 15/07/2006
Location: AustraliaPosts: 640
| Posted: 11:17am 15 Jun 2022 |
The 260Ah cells are almost 9 years old now.
On the first of June, I did the usual drive to Mackay round trip. Did 102.8km using 21.1kW by the screen. I also photo'd the single cell voltages at rest after the trip. Then I connected up to the solar for recharge and measured 163Ah going back in.
Then on the 3rd of June did another Mackay round trip for a second reference. 114.1km using 22.1kW by the screen. I didn't record the Ah going back in, but would be a bit over the 163Ah from the other recorded trip.
While this is still giving me 100km range, I have decided to do a battery change anyway.
Fitted at the start of this thread, page 1, first drive was around the 15 July 2013. Now 15 June 2022. So 1 month short of 9 years.
Since the last recorded speedo reading 120248.9km, now reading 127704.9km, makes 7456 km for the past year.
7456 km plus total from last year 168880km = 176,336km in total driven on this 260Ah pack.
Now this 260Ah pack started as 52 cells but later removed 4 cells to match T-Rev 48 cells, so I could connect both battery packs together when I towed T-Rev on the trailer.
The cost of the 52 cells x 260Ah was (from page 1 of this thread) $18928
$18928 / 176,336km = $0.107. That is 10.7 cents per km for battery cost. If I kept this pack in longer, this cost per km would come down lower.
This 260Ah battery pack has been removed. Anyone want a pack for stand-alone solar?
All cells were numbered so making it easier to parallel lower capacity cells with higher capacity cells for a solar system. A 48v solar system, can have 3 of these in parallel, making up 3 x 163Ah = 489Ah. As recorded from our first EV Hilux battery pack on our own house solar, another 6+ years http://www.thebackshed.com/forum/ViewTopic.php?FID=10&TID=6010
We have changed the battery pack to 48 cells x 300Ah. Today (15/6/2022) was the first drive on the new 300Ah.
