Questions tagged [battery-charging]
Please specify the battery type in your question. Include chemistry (e.g. lead-acid, Li-ion), voltage, capacity (in A·h or W·h), number of cells and how they are connected (series or parallel) .
3,143
questions
0
votes
0
answers
46
views
Is my lead acid charging circuit fine?
I would like to ask for review in my schematic circuit for charging lead acid battery with following data:
6 cells per unit (1.75 V per cell), float charging voltage between 13.7-13.9 V, maximum ...
- 147
0
votes
1
answer
27
views
Is it possible to get a dual supply from 2S Li-ion battery which has a battery protection IC connected to it
In the image below, can the node connecting cell 1 and cell 2 be used as ground and PB+ as the positive rail and PB- as the negative rail? Those positive and the negative rails will then be regulated ...
0
votes
1
answer
90
views
Battery pack won't charge because it reads 4.2 V
I salvaged a battery pack from an IP camera and I want to know if it's in good shape to use for other stuff.
The packaging indicates a nominal voltage of 3.8 V and a capacity of 5000 mAh. I assume it'...
- 137
1
vote
1
answer
42
views
Solar panel used to trickle charge four 12 V batteries
I am attempting to use a solar panel to charge four 12V AGM batteries. These are connected to batteries on quad bikes. We are hoping to allow them to trickle charge while they are in the garage. The ...
- 171
0
votes
0
answers
15
views
Simple circuit to charge and balance 7.4v li-ion battery (2s) 2x 3.7v cells in series
I am looking for a simple circuit to charge and balance 7.4v li-ion battery (2s) 2x 3.7v batteries in series, and also with over-charging, discharging, current protection
I have found many circuits ...
- 101
0
votes
0
answers
29
views
How can I switch between battery tracking mode and input voltage regulation mode on the BQ24210?
I'm trying to create a circuit in which a BQ24210 automatically switches between charging a battery via battery tracking mode and charging it via input voltage regulation mode. This is done by having ...
- 1
0
votes
1
answer
17
views
KiCAD PWR_FLAG issue on DW01A circuit
I am building a TP4056 based battery charger circuit on KiCad. The ERC check throws the error as per the screenshot. Do I need to add the PWR_FLAG on VBAT- and VBAT+ nets as well or is there any other ...
- 517
-1
votes
0
answers
32
views
Current concept doubt (charging/discharging) [closed]
Current concept confuses me alot in electronics, have some questions regarding the same-
Suppose my battery rating is 5V 1A (1000mAh) and suppose there is an Rpi to which i want to power and its ...
- 1
0
votes
0
answers
29
views
How can I improve this smart 12v battery charger circuit? [closed]
I am a beginner so I need help on figuring this out I got it in this condition but I think by fixing it will help me learn a lot I've built a few things with success and I've worked on many electrical ...
- 11
0
votes
1
answer
45
views
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 ...
1
vote
1
answer
34
views
Load cycler circuit analysis
Hello I am attempting to build a simple load cycler that will charge and discharge 3.7 V 18650 batteries for a certain number of cycles.
I would like to program it to do something like this:
I'm not ...
- 11
0
votes
3
answers
99
views
How to measure battery voltage during charging?
I have a slight confusion regarding the battery. Suppose I have to charge a battery of initially 12V to 14.2V (full charge). My charger has open circuit voltage of 15V. When I connect it what voltage ...
- 669
0
votes
0
answers
50
views
Creating a 12.6 V 3S Lithium-ion Charging Circuit from 5 V USB-C
I have some questions about what is considered standard for a charging circuit, as this is something I have not much experience in. I am constrained to the following:
3S lithium-ion battery of 2600 ...
4
votes
4
answers
797
views
Impact of high-power USB-C chargers on Li-ion battery longevity
Context: I have a 24 Ah 65 W power bank. I use a USB-A 5 W charger and it takes over 12 hours to charge it. Considering buying a more expensive USB-C fast-charger + cable, as this power bank can take ...
- 41
0
votes
1
answer
41
views
Protection against inrush current on battery charger
I'm designing a PCB for a battery powered robot. This battery must manage both the charge of and discharge of a 8S (29 V nominal) Li-ion battery. The voltages of the application cause big inrush peaks ...
- 35