expiredMeowssi | Staff posted Mar 04, 2024 06:06 PM
Item 1 of 4
Item 1 of 4
expiredMeowssi | Staff posted Mar 04, 2024 06:06 PM
Eco-Worthy LiFePO4 Batteries: 12V 50Ah Battery $96, 12V 30Ah Battery
& More + Free S/H$64
$85
24% offeBay
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you are misunderstanding the old school ways of setting charge modes and profiles for lead acid batteries. the charge mode and float mode are legacy methods associated with iron core transformers and liner voltage regulators when you needed to physically switch between current levels and voltage levels.
modern chargers current charge up to a taper voltage level then switch to constance voltage mode which is typically 13.5-13.8v. anyway I am sure your understanding is lost in semantic nuances. it's not your fault but I want to help people in the thread understand how it works enough to have the right perceptions.
I won't get into the chemistry but when you put an SLA cell above about 14 ish volts you start to dissociate hydrogen in the electrolyte. That is gas. You may have noticed flooded batts are vented and SLA batteries have pressure release valves built in for this reason to prevent bad things
https://www.batteriespl
Don't tell me to stop. I'm just correcting you erroneous statements I'm not trying to pick on you. I think you are just extrapolating wrong statements from some simple misunderstandings of the electronics and battery systems
Trust an EE PhD as hard as that might be.
have a great day. and happy to direct you to good articles if interested.
The charger in a UPS is designed for SLA will cut off charging when the battery reaches 12.46v and shut off the UPS when the battery drops close to 11.59v. That means the LiFePO will never be full charged or discharged. So in that sense it's safe to use in a UPS.
However because it will keep the battery to SLA specs, you'll only be using approximately 23% of the battery's capacity. So that 10ah LiFePO will behave more like a 2.25ah SLA battery in the UPS.
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They excel in any situation where surge current doesn't happen and just needs to provide power for a long period of time. Get a proper LFP charger to get the most out of it.
LFP falls towards the Li-Ion side of the spectrum, quite closely in fact. Lower maximum output for the battery size as compared to Li-Ion but almost no fire risk. They are different enough that you need a LFP charger to get the most out of it.
Many people replace their RV deep cycle LA batteries with LFP. It's more than just a simple swap though as you will need charge controllers and isolaters, depending on the setup. Lots of info if you google for it.
Tool batteries are generally Li-Ion, not LFP.
The charger in a UPS is designed for SLA will cut off charging when the battery reaches 12.46v and shut off the UPS when the battery drops close to 11.59v. That means the LiFePO will never be full charged or discharged. So in that sense it's safe to use in a UPS.
However because it will keep the battery to SLA specs, you'll only be using approximately 23% of the battery's capacity. So that 10ah LiFePO will behave more like a 2.25ah SLA battery in the UPS.
Lithium Ion can discharge at 10-20C and more. This lifepo4 is 1C only. Ride on wouldn't start on this battery
You can charge lifepo4 with 13.6V (3.4V per cell). 14.4 will provide fast charge. 13.6V is a slow charge
For sla you need higher voltage to start process, for lifepo4 you need higher voltage to speedup process
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Lithium Ion can discharge at 10-20C and more. This lifepo4 is 1C only. Ride on wouldn't start on this battery
Those "are" both features, but if you know of somewhere to get those features anywhere near these prices, by all means share with the class, I'll buy several.
If you are comfortable buying LIFEPO4 from EBay, these are some exceptional prices.
Now, this is the second time Eco-Worthy is being offered with a 20% discount on ebay in a month. Last time the tax was applied on the pre-coupon price, so this is something to look into at checkout (a few bucks so no biggie.)
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