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Re: Interesting UPS battery backup SLA battery to LiFePO4 battery a little pricey
if the lifepo4 battery has a protection board that emulates SLA then I don't see why not. You may get lower cycle counts (due to possible overcharge) but should mostly work... -
Re: Interesting UPS battery backup SLA battery to LiFePO4 battery a little pricey
Is that the right link? There's no mention of LiFePO4, it only talks about SLA despite the website URL ".../12VDC-Micro-UPS-battery-backup-board-for-12.8V-LiFePO4-/-12V-SLA-battery.aspx"
You can see the board is your usual SLA linear charge controller 1.2A and a 10A power mosfet battery switch.Comment
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I bought a case of them the battery cells are made in China the charge curve looks decent for 1 amp charging rate there is also a BMS protection board which here is the website link to them
https://batteryhookup.com/collection...-lifepo4-cells
Here are more of the same but the difference is that they do not have the BMS protection boards but have the tabbing on them
https://batteryhookup.com/collection...o4-power-cells this is... -
I have had this battery backup for at 2 to 4 years now and the battery when bad and this is weird battery size it is the same length as a 12 volt @ 7 amp hour battery however the depth of is not the same as a 12 volt @ 5.5 amp hour battery
I have several battery packs that are A123 batteries cell so I bought a lipo4 BMS balancing protection board for these batteries and I have a configuration that is 4S 3P these battery packs were 3S 2P so I reconfigured them but left the tabbing on one side of the battery row of battery cells and re-tabbed the other side to the configuration that... -
My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?
Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?
My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
I have tried multiple different Dell power adapters. My Dell... -
This started a few days ago and does this about every 8 hours
After it does this it goes back to normal no bad battery icon and no weird sounds and it goes to battery backup mode so I am not sure what is going on with this battery backup
The battery backup is about 3 or 4 years old
Dose anyone have any idea on how to troubleshoot this issue I have never had a battery backup do this kind-a thing before so I am not sure exactly how to troubleshoot it and where to start -
Hello everyone,
Mark and model: ASUS X571
Symptoms: not turning on. There is only the LED battery indicator working. The owner of the laptop told me this problem arrived one week after having changed the battery. He then managed to power on the laptop only once, and then it never powered on again.
Tests already made:
- Battery is charging when laptop is plugged in. The LED battery indicator turns white after a couple of hours of charge, indicating that battery is fully charged. However, laptop won't turn on anyway, with or without AC plug.
- I have removed...
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