Upgrading to Lithium with Solar...

Itinerant1 wrote:

memtb wrote:
Lithium batteries are pretty temperature sensitive, at least according to what I have found in my research. If you have a means to keep them within the parameters that keeps them happy....certainly go far it.

For our use, the batteries would be subjected to both cold and hot, outside their “proper” temperature parameters. Excessive heat, shortens their life considerably. Excessive cold, and their “power availability “ (my term) drops off faster than lead/acid batteries.

We considered them.....just “not” doable for us!

Here's a little more for lfp research when comparing to lead/ acid batteries and giving advice. ;)
http://gwl-power.tumblr.com/tagged/temperature

Thanks, though I had difficultly using your sites data. So, I went searching again! The data that I find often seems to conflict. If my understanding of this data is correct, Lithium batteries, are difficult (possible irreversible damage)to charge in temperatures below 0 F....which we camp in often. I could be and will likely be, proved wrong, but it seems that Lithium batteries are difficult to work with in temperature extremes. If they can be kept in a somewhat controlled environment....they are incredible. Below are a few paragraphs from websites and a list of websites! I’m conflicted!

However....I certainly misunderstood or remembered incorrectly about how they are affected in cold. It is “not” the voltage loss...but the difficulty charging them when cold!

The Challenge of Low-Temperature Lithium Charging

Blog-Post-Temperature-Gauge.jpg#asset:3656:blog
When it comes to recharging lithium-ion batteries, however, there’s one hard and fast rule: to prevent irreversible damage to the battery, don’t charge them when the temperature falls below freezing (0°C or 32°F) without reducing the charge current. Unless your battery management system (BMS) communicates with your charger, and the charger has the ability to react to the data provided, this can be difficult to do.

Perhaps...something like this convinced me they were impractical

The damage to the battery when charging at colder temperatures is proportional to the charging rate. Charging at a much slower rate can reduce the damage, but this is rarely a practical solution. In most cases, if a lithium-ion battery is charged below freezing even once, it will be permanently damaged and must be safely discarded or recycled.



The following are some links, I found.....providing somewhat confusing info pertaining to the practical uses of these batteries in extreme temperatures.

www.linkedin.com/pulse/lead-acid-vs-lithium-ion...
relionbattery.com/blog/lithium-battery-cold-weather
relionbattery.com/blog/lithium-battery-cold-weather
techxplore.com › Energy & Green Tech
electricbike.com/forum/forum/knowledge-base/...