Steven Di Maira wrote:
Rachel Brylawski wrote:. (Check out this "Cabin Iron Sun" kit for $300, which includes the solar panel, NiFe battery set, lightbulbs, adapters, etc: https://livingenergylights.com/product/iron-sun-cabin-kit/)
I looked at the link.
That Cabin Iron sun kit is actually very interesting.
For a low price it give you the opportunity to play with Nickel Iron batteries. Without the need to shell out multiple $$$$ for a big set.
Or the hassle to import a nife battery set from China. It's doable to import them yourself, but not for such a small order.
Reminds me bit to the lead acid batteries and charge controller kits you can find everywhere.
Brian Maverick wrote:
Ah, got it. You are using the original type of the Edison battery design then.
I mis-read that for the modern variation of the battery like this,
The combination of the LiFe are becoming cheaper to make and much more plentiful as EV vehicles and other hand-held devices are using the technology. The huge advantage is the weight. The nickle types are HEAVY and the Lithium are lite.
For the link you had provided, the cost is interesting. It's too cheap. Sure the shipping is up there, but the weight is affecting that. My only concern is the LED bulbs; No rating if they are health safe as in 3000K (kelvin) or less. If they are, then it's a no trainer to snag a kit or 2 for 12VDC use.
I do like the other posting here about no battery needed. Capacitors with a voltage regulator and a resistor or two would replace a battery for all night long LED lighting.
Christopher Shepherd wrote:Hi Rachel. I use 12v for our main power supply here on our little farm. We just went through the darkest spring in 14 years here. We have 5 different setups with a total of 2000 watts available. We already have 12v lights, pumps, heaters, coolers, grinders, shellers, and so on. Have you ever tried using a supper capacitor to help with the high current start up of things like motors or inverters? I started buying caps and build them for our own use. They make a huge difference running things. I have a couple 58 farad at 16.2v and a few 350 farad at 16.2v. I would like to buy a couple 20amp hour batteries and controllers.
Brian Maverick wrote:
I too would echo LiFe batteries as the best resource for energy storage. But cost wise, you can take a spread sheet see how long an RV/Marine battery Deep Cycle group 27 battery would last and it's replacements vs. the LiFe (lithium-Iron) batteries. It's almost a wash. The real trick is, having the right balance of capacitors to the solar setup in the system. The caps would help with heavy load startups that taxi the batteries. Taking that load off really extends the RV/Marine Gel cells battery life.