Questions tagged [lipo]
Questions regarding Li-Po batteries (Lithium-ion Polymer, Polymer Lithium Ion or more commonly known as Lithium Polymer), including proper charging and usage.
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Why is there so much fear surrounding LiPo batteries?
I've been trying to design a charging system for a small robot powered by a 2S 20C lithium polymer (LiPo) battery. Were I to trust everything I read online, I would believe that the LiPo will kill me ...
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LiPo vs. NiMH for kid's toy
I've been researching here and on google regarding potential battery technologies for a toy that I want to make for my kids. I was hoping to get others' perspectives on this, keeping in mind that ...
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Low current battery monitoring
I want to run a micro-controller from a 1S lipo through a 3V linear regulator. I need to measure the battery voltage however. The problem with using a voltage divider is that it would drain the ...
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Why is charging with Lithium batteries with a small load dangerous?
I'm well aware of the best practices for charging lithium chemistry batteries, and how the charges themselves work.
I've never had a water tight explanation on why having a load on a battery during ...
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Understanding LiPo charging / protection circuit
I'm in the process of learning to design PCBs and understanding electronics design. For a project, I need to charge a 3.7V LiPo battery. I also want to protect it from over‑charging / over‑...
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Parallel charging of lipo batteries, maximum voltage difference?
There are numerous products that enable lipo batteries to be charged in parallel.
Most sources are clear on voltage and capacity requirements, which follow pretty directly from basic circuit ...
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DC-DC Boost converter in Parallel
I'm trying to power a 12V 1A device with 1 cell lipo battery. At 12W, the lipo would need to provide 3.24A (assuming no power loss) to step up the voltage to 12V and providing 1A.
However the DC-DC ...
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How does a battery balance and protection circuit work?
I am building a 4S LiPo battery pack that I would like to incorporate in a portable speaker project and I need to make sure the batteries will never require maintenance beside replacing them ...
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How do/can I charge a Li-po battery without a fancy charger (just using a current)?
I am designing a model airplane that flies using solar cells on its wings. I have a 7.4 V, 2200 mAh battery I want to use for it in case it flies in a cloudy area and needs more power, but everywhere ...
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NiMh or LiPo batteries for unattended charging/usage
I'm in the planning stage of a summer project: A WiFi controlled robot for remotely monitoring a shore home. The robot will consist of a 4-wheel platform (4 motors, 1 A stall current each, 7 V), ...
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To protect a LiPO cell from undervoltage, how low current is low enough?
This may seem like a topic beaten to death, but bear with me.. this is an apparently ignored wrinkle. Over the past several weeks I've been designing various circuits to protect a LiPO cell from under-...
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Before storage why should a Lithium Polymer battery be charged up to only 40-60%
While storing a Lithium Polymer battery cell or a device with a Lithium Polymer battery why should we make sure to discharge the battery to 40-60% (and only then put it to storage)?
What happens if ...
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How much can I overcharge a 4.35V LiPo?
I'm building a charger for a set of LiPo cells. My circuit needs to make sure they get fully charged to their maximum level of 4.35V. At the same time, the circuit should protect the cells from ...
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Is this MOSFET upside down?
I'm looking at existing circuits and trying to understand them so I can design my own. Also to improve my electronics knowledge, for some reason MOSFETs have never quite sunk in for me.
I came across ...
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Why do drones use Li-Po instead of Li-Ion? [closed]
According to every source I've found the only advantage of Li-Po is their shape, but they are more expensive, have lower energy density and are more dangerous compared to Li-Ion.
Why do drones use Li-...
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