¿Want Lithium?

384 Amp Hrs

The FAA requires STRICT PMA adhesion to materials, performance and maintenance protocols. Aircraft even private planes must have over-voltage devices that shut down charging systems. Commercial passenger aircraft are infinitely more complex and stricter.

So please can someone tell me WHY all the rules and regulations FAILED to prevent lithium battery FIRES on it's aircraft? Supposedly the fix cost tens of thousands of dollars per airplane. Involves COMPUTER management. Victron batteries got computers?

Car and RV vehicles on sale now are huge, to avoid California inventory tax come jan 1st, 2016.

pianotuna wrote:
So far I can only find two negatives about LI. One is the low temperature problem where they can not be charged below -20 C (-4 f),

Don ... take a look at the right hand pictographs way down at the bottom of this page link. Since Smart Battery lithiums can be used down to -50C, would it not be valid to assume that they can also of course be recharged way down there at low temperatures? If so, perhaps it means that the Smart Battery built-in battery management system is a pretty good one:

http://www.lithiumion-batteries.com/lithiumFAQ.php

Hi Bumpy,

You might want to read the comparison paper from Victron.

One of the advantages of LI is lower voltage drop under load. Standard Lead acid batteries are rated for 20 amp-hours on a 5 amp draw. Double that and the amp-hours of capacity vanish. Get to 0.5 C and hours of capacity become minutes. This is worst with flooded and slightly better with AGM. It does happen with LI but not nearly as much.

According to the article, 0.5 C on an AGM leaves only 30% of the 20 hour rate available and just 2 hours of the 20 hours usable (i.e. staying above 50%).

AGM



LI on the other hand at 0.5 c leaves 105%, so the battery can be ten times smaller in capacity than the agm and still provide the same amount of energy (i.e. 2 hours staying above 20%).

Li



So there is some truth in the 125 = 500, especially under high loads.

So far I can only find two negatives about LI. One is the low temperature problem where they can not be charged below -20 C (-4 f), the other is price. Victron btw has no axe to grind as they sell both LI and AGM jars.

https://www.victronenergy.com/blog/2015/03/30/batteries-lithium-ion-vs-agm/

Bumpyroad wrote:

atreis wrote:
Two of these (Stark Power) would cost a lot less and have greater capacity.

does their smoke and mirrors 125 ah = 500 ah make sense?
bumpy

No, but I wasn't using that number. Two of the Stark batteries linked would have 250 Ah and cost significantly less than the 195 Ah battery linked by the OP. It's just a less expensive alternative.

Look at the license plates in a casino. Might as well be CA. Win a couple of thousand dollars and they report it to both the IRS and California. Nevada did not have inventory tax. That's why Sparks has so many warehouses. Tesla makings aren't low budget...

ol Bombero-JC wrote:

NinerBikes wrote:


so far, until the Giga battery factory that Tesla is building opens up near Reno, CA

Hmmmmmm - did CA annex Reno?..:@

~

Whoops... NV it is. Senior moments.

NinerBikes wrote:


so far, until the Giga battery factory that Tesla is building opens up near Reno, CA

Hmmmmmm - did CA annex Reno?..:@

~