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Edited January 14, 2022
at 08:35 AM
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https://hqsolarpower.com/on-sale/
The LiFePo4 battery is a solid deal but note that you cannot put them in serial for higher voltage. The flexible 100W panel is also solid and a good choice for boats/RVs at only 4lbs. There is a $53 20A MPPT charge controller and a fancier bluetooth one for $72.
Hot price on a solar attic fan for $99.
https://hqsolarpower.com/12-volts...lications/ OOS
https://hqsolarpower.com/100-watt...lar-panel/
https://hqsolarpower.com/100-watt...panel-new/ OOS
https://hqsolarpower.com/100-watt...ct-design/
https://hqsolarpower.com/20a-mppt...ontroller/
https://hqsolarpower.com/hqst-20a...d-display/
There are others but these seem the best deals. This was an earlier deal ending 11/20 for the rigid panels and has some discussion:
https://slickdeals.net/f/15420964-hqst-100-watt-12-volt-monocrystalline-solar-panel-76-99-with-fs?v=1&src=SiteSearch
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This equates to minimum 10+ years life expectancy, yet priced at par with high quality commercial lead-acid batteries.
This is fabulous and unrealistic deal, but I don't believe seller's claim. If they truly believe their hardware to last minimum charge cycle of 3000, they'd be accompanied with stated warranty accordingly, that is minimum 10 years free of replacement guarantee, that is to say, free battery replacement rights to purchasers if storage capacity degraded to industry standard of 60-70% of original specification.
This really may be a quantum leap jump in battery technology everyone wants, or just a hype to find a sucker. I'd tend to believe it be be later case, as I can't find warranty replacement policy that support its claims.
There still is many merchants selling over-stated lithium batteries in eBay. I do not believe they wanted quick income by cheating someone, but they really do NOT understand the underlying battery technology. I hope merchants in this understand the items they sell to public.
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This equates to minimum 10+ years life expectancy, yet priced at par with high quality commercial lead-acid batteries.
This is fabulous and unrealistic deal, but I don't believe seller's claim. If they truly believe their hardware to last minimum charge cycle of 3000, they'd be accompanied with stated warranty accordingly, that is minimum 10 years free of replacement guarantee, that is to say, free battery replacement rights to purchasers if storage capacity degraded to industry standard of 60-70% of original specification.
This really may be a quantum leap jump in battery technology everyone wants, or just a hype to find a sucker. I'd tend to believe it be be later case, as I can't find warranty replacement policy that support its claims.
There still is many merchants selling over-stated lithium batteries in eBay. I do not believe they wanted quick income by cheating someone, but they really do NOT understand the underlying battery technology. I hope merchants in this understand the items they sell to public.
https://youtu.be/IkoYW7kCR4I
LiFepo4 battery in general should not be used in freezing conditions. The battery management system should have low temp cutoff to prevent damage. This is not a replacement for lead-acid battery for engine cranking. This is good for providing power for other applications like powering your RV/house where it's in above freezing temps.
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Our community has rated this post as helpful. If you agree, why not thank ikonoklast
This equates to minimum 10+ years life expectancy, yet priced at par with high quality commercial lead-acid batteries.
This is fabulous and unrealistic deal, but I don't believe seller's claim. If they truly believe their hardware to last minimum charge cycle of 3000, they'd be accompanied with stated warranty accordingly, that is minimum 10 years free of replacement guarantee, that is to say, free battery replacement rights to purchasers if storage capacity degraded to industry standard of 60-70% of original specification.
This really may be a quantum leap jump in battery technology everyone wants, or just a hype to find a sucker. I'd tend to believe it be be later case, as I can't find warranty replacement policy that support its claims.
There still is many merchants selling over-stated lithium batteries in eBay. I do not believe they wanted quick income by cheating someone, but they really do NOT understand the underlying battery technology. I hope merchants in this understand the items they sell to public.
LiFePO4 chemistry batteries have high cycle counts in the thousands. 3000 is a reasonable expectation for these batteries. Whether the manufacturer puts in quality cells is something buyer has to research.
My golf cart batteries, yielding approximate twice the capacity of this one costs about $300, at par with Costco package, will jump onto this lithium, if there is any assurance that these batteries perform as stated. Even at $1400 Costco charge for pair, I'd more than happy to buy it, it's well worth the investment.
From what I read on media, these things can be charged with much higher current and negligible self-discharge loss, substantially reducing overall recharging time, which is real benefit of having lithium battery.
Only issue is, as you stated, the quality of cells inside that can yield theoritical yield of stated charge cycle. You may end up with one of those 18650 recycled cell repackaged that stated energy capacity is unreal.
In there you can learn about how these lifepo4 batteries are built, where to get cells, and where to buy BMS's, and how to set it up. For about $600 I built a ~12V 4S battery with ~250Ah including a quality BMS. It's really not that difficult. That was over 6 months ago and prices have gone up since then, but it's still a real bargain compared to old battery types.
https://youtu.be/IkoYW7kCR4I
All these issues are preventable if one pays attention but it's nice to have a peace of mind that the BMS can handle these things. I think these batteries are a great solution but the downside is you are stuck with whatever BMS that the manufacturers put in.
I am tempted to buy, the price is very good but I am particular lol.