Good morning daily

[T1 Terry]

Good morning.
I finally finished the little shed .... just have to align the door correctly...I need another person to help...
Carol's mate who she shares trips to bingo with had to pull out... she has visitors...so I drove Carol to bingo
Then went and picked her up after and we went to the commercial Hotel for lunch with our Victorian friends.
They will be heading home today..
We had some good rain through the day... maybe more today ..
I don't know what going to happen today..yet..
Terry there are some friends of mine on an aviation forum that are thinking of putting those sodium batteries in their aircraft...it will be interesting to see their results..
Keep safe.
Bernie.
IMG20250901110934.jpg

Don't they have to jump through all the aviation authorities approval hoops to change battery chemistry?

It would be brilliant if they can get that certified, it will make transporting them so much easier ......

T1 Terry

[BernieQ2]

Terry, at the moment it's not approved by the authorities for either lipo4 or sodium batteries...
But there are some light aircraft with lipo4 batteries on board... with no problems so far...
When and if someone on the aviation forum puts a sodium battery in and gives a report I will put the results here.
Bernie.

[T1 Terry]

The problem with Sodium ion is the fully charged voltage is 4v per cell, so 16v to 16.8v for a 4 cell battery, where LFP is 13.8v to 14.4v. A cell equaliser is a must with either type, ZHC Solar HA02 is one of the best and the most reasonably priced, these units can move 5 amps between cells, the other stuff moves milliamps

T1 Terry

[jon_d]

The bigger problem is whether the plane electrics will handle the high voltage at 15,000 feet.

Least with the winnie, the wheels are on the ground when things uncharacteristically fail.

[BernieQ2]

Light aircraft are limited to 10,000.
Not many can make that hight because of the lack of oxygen for the engine.

[jon_d]

Funny how light aircraft can only get to 10000, yet, heavier one can get to 40,000.

[BernieQ2]

Air bags

[Greynomad]

Nah!
Every flight carries a politician.
They need the hot air for lift.

[T1 Terry]

The bigger problem is whether the plane electrics will handle the high voltage at 15,000 feet.

Least with the winnie, the wheels are on the ground when things uncharacteristically fail.

I'm still paying for the 2 broken mirrors in the Fuso, so maybe that's the thing that ties all the "uncharacteristic" fails together

I'm seriously thinking about going 48v again, using 14 x 200Ah Sodium ion cells to give me 56vdc to 58.8vdc, sodium ion is between 4v and 4.2v per cell fully charged, although some claim 4.3v, at that cell voltage, 12 cells would give me 51.6vdc.
3 cells @ 4.3v would give you a 12.9v battery, not sure I'd want to be pushing the cells that hard in something not of the ground, but 4 cells @ 14.8v would only be 3.7v per cell ..... if it is really only for starting that it needs the capacity, the engine electrics provides the running for the instruments etc, that would be a long life battery for sure.

5 x LTO cells would give you a 14v battery that you would need to pass on to your kids and grand kids with a cyl life of 30,000 full charges to 2.8v and discharge to 1.5v and handle 5C charge rate and 10C discharge rate, 400CCA from a 40Ah cell and recharge from 1.5v to 2.8v @ 200 amps in 11 mins ....... they aren't the most energy dense, but by far the safest and longest lasting .....

T1 Terry

[jon_d]

The bigger problem is whether the plane electrics will handle the high voltage at 15,000 feet.

Least with the winnie, the wheels are on the ground when things uncharacteristically fail.

I'm still paying for the 2 broken mirrors in the Fuso, so maybe that's the thing that ties all the "uncharacteristic" fails together

I'm seriously thinking about going 48v again, using 14 x 200Ah Sodium ion cells to give me 56vdc to 58.8vdc, sodium ion is between 4v and 4.2v per cell fully charged, although some claim 4.3v, at that cell voltage, 12 cells would give me 51.6vdc.
3 cells @ 4.3v would give you a 12.9v battery, not sure I'd want to be pushing the cells that hard in something not of the ground, but 4 cells @ 14.8v would only be 3.7v per cell ..... if it is really only for starting that it needs the capacity, the engine electrics provides the running for the instruments etc, that would be a long life battery for sure.

5 x LTO cells would give you a 14v battery that you would need to pass on to your kids and grand kids with a cyl life of 30,000 full charges to 2.8v and discharge to 1.5v and handle 5C charge rate and 10C discharge rate, 400CCA from a 40Ah cell and recharge from 1.5v to 2.8v @ 200 amps in 11 mins ....... they aren't the most energy dense, but by far the safest and longest lasting .....

T1 Terry

Brilliant idea. Why not start now? You can work on it between doing the hybrid, the house and the health issues.