Questions tagged [lifepo4]
All related to lithium iron phosphate (or LFP) batteries
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Selecting the generator frequency for an active battery balancer
I started researching ways to balance batteries and settled on capacitive balancers. I found a diagram on them and most of them use NE555 to generate a square wave with a frequency of ~7 kHz and a ...
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LiFEpo4 issues and concern
I have a 200AH LiFEpo4 battery and I bought an inverter, my inverter has 4 output AC socket if I connected the 1st socket to airconditioneer and and the 2nd socket to the charger continue charging ...
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24S Lifepo4 battery draining
I built a 24s lifepo4 battery for my golf cart. I’m having an issue where under load cell 2 drops voltage while all others barely drop. Is this indicative of a bad cell? Or a poor connection? Any help ...
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How can I protect a DC/DC converter when VIN is floating?
I'm using a L6902 (https://www.st.com/resource/en/datasheet/l6902.pdf) to charge a 4 cell lifepo4 pack (with a solid BMS).
Do I need a diode on the converter output (PACK+) to prevent the converter ...
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Does this battery pack allow load sharing setup?
I would like to use a pre-assembled 12V-rated LiFePO4 battery pack such as the one advertised here. Due to nature of intended use I'm currently focusing on a charging setup where the load is connected ...
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Switching 12V 50A with Arduino
I'm in the middle of building a DIY Powerstation with a 500W modified sine wave inverter. The battery is of type LiFePo4 and rated at 12.8 50Ah. The datasheet of the battery states that they recommend ...
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MPPT controller or charger into battery mangement IC?
Is it possible to add an MPPT controller (or charger?) upstream of a battery management IC that lacks solar input, as a means of supporting a solar power source?
I'm finding battery management ICs ...
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1 Solar panel to 2 mppt, to 2 separated batteries
In my motorhome I have 1 solar panel (500w) to a one victrom mppt 30A, to one battery 100A of lifePo4.
Now I need more battery because i have a new 12v fridge, so I bought other battery 230A lifepo4, ...
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LiFePo4 Battery's BMS is clipping when my relay switch kicks-in
simulate this circuit – Schematic created using CircuitLab
My trolling motor had no "kill-switch" that would turn the motor off should I get dumped into the water. So I purchased a ...
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Adding one cell in parallel to help a bad cell in a LiFePO4 Batteries bank
I have a 8 cell 200ah GBS 24v battery bank on my boat. It is 6 years old and cycled about 1000 time probably.
Just some background first: I bought the 8 cells from china direct as 2 x 12v packs. ...
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replacing a "li-ion" HFC (3,2v) battery
I have a device with containing 4 x (allegedly) "Li-Ion" HFC batteries in serial but voltage is not 3.7 but 3.2V.
labelled values "Li-Ion 3.2v HFC1450 series 500mAh 1.6Wh"
Just ...
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How to reduce voltage for step up converter input?
I'm planning to do something you will probably advise me not to - diy a sub $50 lifepo4 charger.
So far (I think) I've got it figured out - I'll use boost converters in parallel, which should work if ...
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How to clean water damaged Lifepo4 batteries
What is the best way to clean water damaged rusted lithium Lifepo4 batteries?
I have six used 16sXp 48v 5kwh server rack batteries that look to have been sitting in water and have rusted. There is ...
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Layout of a LiFePo battery pack with serial and parallel cells
Due to space I need to build a LiFePo battery pack with 8 individual cells.
Each individual cell has 12V and 50 Ah, and the pack has to have 24V and 200 Ah. This would be the specific cell I plan on ...
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Charging 4 parallel banks of 4 in series LifePO4, 16 total batteries. that have been top balanced
16 each LifePO4 batteries. 12.8Vdc 300Ah (Jita), an alleged internal BMS, charge by four SunGold Power SP6548 inverters, configured so two are providing 120VAC for phase 1 and two are providing 120VAC ...
