All Questions
Tagged with lipo lithium-ion
46
questions
8
votes
2
answers
1k
views
Power bank or fire hazard?
I do have a bunch of 18650 LiPo cells, salvaged from various sources. Now, I happened to come across a variety of power bank cases on Amazon which mostly look like this:
Even a cursory look tells me ...
- 309
1
vote
1
answer
70
views
Can I use a MAX17262 to measure battery capacity of a 300mA 3.7V Lipo?
First, I a very basic understanding of lithium based batteries and from what I have learned, gauging their capacity can be quite complex. I was looking into MAX17262 as a fuel gauge to measure the ...
- 229
1
vote
2
answers
49
views
Specific Li-po, Li-ion and charging facts (low intensity, slow)
I have the following battery, but not its original charger:
12 V, 4.0 Ah
Cell Balancing Longer Battery Life Increased Battery Lifespan. Higher Battery Resources Due To Evenly Used Cells.
BTW ...
- 155
0
votes
1
answer
438
views
Is my 2S Lipo charger design with bypass while charging correct? Need some help on isolating the charger from the battery while not charging!
I'm using a circuit to charge a 2S lipo battery, and bypass the battery while it's charging, and still supply energy the circuit.
It works. But for the new charger module I'll use now, when the ...
- 567
15
votes
4
answers
3k
views
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 ...
- 434
-1
votes
2
answers
985
views
Connecting 3 Li-ion pouch cells in series with BMS
I have three 2000 mAh, 3.7 V Li-ion pouch cells.
I want to connect these three cells in series to get 11.1 V and 2000 mah
I made 11.1 V out of three Li-ion cylinder cells before; I used a BMS.
As my ...
0
votes
1
answer
253
views
Inconsistent battery level reading on ESP32
We have a IOT design that runs its normal operation with 12 V DC. Without the 12 V DC, we have a 2-cell Li-ion battery pack which outputs 6-8.4 V.
As a Li-ion charger we use Microchip's MCP73213.
We ...
- 44
0
votes
1
answer
123
views
Charging a LiPo using Battery Protection Circuit
I have an application where I power an ESP32 from a LiPo battery. Between the LiPo and the ESP32, I have a DW01A battery protection circuit (data sheet is here: https://hmsemi.com/downfile/DW01A.PDF).
...
- 879
0
votes
1
answer
115
views
Using a rechargeable LiPo/Li-ion battery as "burst" current source
For a project I'm working on, I need to run a motor for a few seconds (somewhat rarely). The motor requires 24V@1A. The rest of the circuitry runs on 3.3V@300mA. My general thought is to use a 3.7V ...
- 351
0
votes
0
answers
756
views
How can I use 2 TP4056 to safely discharge 2 18650 cells in series
I am new to electronics. I have made a robotic car type thing with arduino and L298N and I want to power it using two 18650 ...
- 87
1
vote
1
answer
1k
views
Li-ion vs Li-Po batteries cut-off protection
I am confused with the differences between Li-ion batteries (like 18650) and Li-Po (the flat ones).
I know that basically they are both lithium ion, but when I want to buy I see that LiPos have always ...
- 11
0
votes
2
answers
466
views
Is charging current shared between Separate LiPo batteries wired in parallel?
I have two separate 2000mAh LiPo batteries (not RC type the standard 2 wire DIY component type https://coolcomponents.co.uk/products/lithium-polymer-battery-2000mah) Which I want to wire in parallel ...
- 13
1
vote
1
answer
36
views
Should there be a clearance between a lithium polymer cell and a charging circuit?
I'm building a compact portable console that is going to use a 500ma charger board from Adafruit and possibly a 5v 1a boost as well. Past experience has taught me the chips on those little circuit ...
0
votes
0
answers
1k
views
How to tell a battery is LiPo or Li Ion (based on apperance)?
I have this battery and I don't know it is lipo or li-ion:
Is there any way to tell a battery is lipo or li-ion based only on apperance?
- 449
0
votes
1
answer
2k
views
Make 9v ups for router with TP4056 and MT3608
I am building 9v UPS for my wifi router using TP4056 lithium-ion charging module and MT3608 stepup converter. If USB power is available I want MT3608 to get power from USB (TP4056 Vin Pin) otherwise ...
- 11