ENER Solar generator

[marsofold]

My next set of batteries will be a 24 volt lead-acid small forklift battery. They last 20 years if properly maintained.

 

[Profit of Doom]

Again, there is no such unit in electricity or physics. You are using your meter (and I have the exact same one) to measure kilowatt-hours consumed in your chosen 24 hour interval, not watts per day.

Just a matter of moving the decimal. One kilowatt-hour is 1000 watt-hours is 42 watt-days. 1000 watts flowing for one hour, same as 42 watt appliance being operated 24 hours.

 

[Sebastian]

The LiFepo4 batteries I just bought says they can be used down to -4*F.


There is at my house. I used a Kill-A-Watt meter on my appliances to see how many watts were used in 24 hours. That is the info I used to size my solar power system.

watt hours are commonly used. But their no law that says you can't use watt days, months, years of even lunar cycles. some folk seem to need nuts to pick.

 

[LoupGarou]

Are any of the units of any use in/after an EMP or do the individual components need special protection?

Is it safe to put the BLUETTI battery in an EMP bag? Can it get damaged enclosed in the bag?

I debated if the batteries need protection but have decided they do as there are electronics built in.

If you are worried about HEMP (High Altitude Nuke EMP), they will be fine. HEMP is not an issue.

If you think you might be in range of a HPM-EMP (High Powered Microwave) (non-nuclear, but RF), then your results may vary. The BMS may become toast after a HPM-EMP, and with it (usually) permanently connected to the battery, there is no way to "power it down" to keep it better protected. Low probability of ever being in an area of a HPM-EMP attack, but technically possible with plane and missile based systems now.

I have plenty of LiFePO4 batteries, and since the BMS systems in each are IMPORTANT for safety and normal operation, I have bought spares (and for more probable reasons that HPM-EMP).

 

[Wildweasel]

I'm not sure what the point is buying these small units?
Just for charging phones and laptops?

A buddy uses a larger one while camping when he can't run his generator. That thing will power his RV all night long if he doesn't run the AC. He can run the AC with it, but it limits the battery to about 3 hours of use. If he added the expansion battery pack and a second solar panel he could run the AC all night long.