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
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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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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.
second one, I kept a closer eye on it. It made it through the first night, but the next day I noticed it gradually dropping from 100% throughout the day, by the time I got home from work it was at 23%. At that point I called this experiment, these particular batteries would not work for my use case (<60W draw in a 750VA / 400W UPS )
second one, I kept a closer eye on it. It made it through the first night, but the next day I noticed it gradually dropping from 100% throughout the day, by the time I got home from work it was at 23%. At that point I called this experiment, these particular batteries would not work for my use case (
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Kids ride-on toys typically use SLA style batteries, vs ebikes which use Lithium Ion batteries.
Where in that spectrum do these LiFePO4 batteries fall? Can you upgrade a kids ride-on car with one of these as long as you match voltage? Similar question for using these on a full fledged e-bike. I have dabbled with both building ebikes as well as modding my kids ride-on toys. But I cannot for the life of me figure out if these LiFePO4 style batteries are similar to either technology.
Alternatively, could these be used to replace the 12v battery in my RV?
Anybody hookup the larger 100ah or 150ah to a smaller UPS by adding wirings?
I have used smaller lifepo4 6 ah that fit into existing UPS with original sealed lead acid but they don't last long enough for some power outages. Those portable power stations are alternative I can use but cost more like $150 for 20 to 30 ah or approximately 300watthour.
Will there be any charging, overheat issues connect such a large battery to smaller UPS?
Kids ride-on toys typically use SLA style batteries, vs ebikes which use Lithium Ion batteries.
Where in that spectrum do these LiFePO4 batteries fall? Can you upgrade a kids ride-on car with one of these as long as you match voltage? Similar question for using these on a full fledged e-bike. I have dabbled with both building ebikes as well as modding my kids ride-on toys. But I cannot for the life of me figure out if these LiFePO4 style batteries are similar to either technology.
Alternatively, could these be used to replace the 12v battery in my RV?
Kids ride-on toys typically use SLA style batteries, vs ebikes which use Lithium Ion batteries.
Where in that spectrum do these LiFePO4 batteries fall? Can you upgrade a kids ride-on car with one of these as long as you match voltage? Similar question for using these on a full fledged e-bike. I have dabbled with both building ebikes as well as modding my kids ride-on toys. But I cannot for the life of me figure out if these LiFePO4 style batteries are similar to either technology.
Alternatively, could these be used to replace the 12v battery in my RV?
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.
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