grizzzman wrote:
NinerBikes wrote:
pnichols wrote:
I hope these early lithium batteries sized for RV use do better life-wise than the little lithium batteries in my various electronic gadgets (computer, cell phone, Garmin navigator, etc.). It seems like I'm "always" having to replace the lithium batteries in these ... it's a good thing I can get the replacements for them in the $20-$100 range.
What we need (finally) is battery technology that acts like an air capacitor ... just sits there ready to deliver whatever energy is left in it regardless of state-of-charge - and can do this over and over and over forever including taking it to zero charge as many times as you want ... and can be recharged at any amperage so long as arc-over voltage is not exceeded ... and is at least as small as Group 31 size. Ooooh I almost forgot ... we gotta be able to afford it and lift it.
Since we'll never see the above - an affordable small propane powered fuel cell for RV's would be a good substitute.
Charge your lithium batteries to only 90% SOC and they will last a lot longer. So many people want that last 10% or performance, which is hard on lithium batteries. Leave the last 10 to 15% in there also. Always keep above 3.0V and charge to 4.1V, max not 4.2V.
If you charge a lifep04 battery at 4.1 volts it will NOT last very long. If you go this route. DO your homework! ( This is the battery/ cells you want to use for RV.)
This is for 18650 batteries, different chemistry than Fe PO4 stuff.
