All Questions
Tagged with measurement batteries
30
questions
2
votes
1
answer
74
views
How to measure Lithium-ion battery SoC?
I have a 48 V 12 Ah Lithium-ion battery pack.
I am struggling in finding a way to measure its State of Charge.
It will be charged through a 13S JBD BMS.
I need to spit out information from the battery ...
1
vote
1
answer
78
views
How to determine C-rate for DIY batteries?
I am investigating some DIY battery chemistries and construction, as such they do not have a known C-rate. How would one measure this? How is it determined for commercial batteries? There seems to ...
- 11
0
votes
1
answer
64
views
Need to monitor a Li-ion battery using a 0-10 V output
I have an ebike with a weird proprietary BMS which is broken.
I want to replace it with a standard BMS, but there's a pin coming out of a connector on the battery that sends between 1 and 10 V to the ...
- 1
0
votes
1
answer
97
views
What does measuring a diode with a DMM's diode mode say about a circuit when the circuit is charged? [closed]
I've never used diode mode before on my DMM, so when I went to measure a diode in my circuit, I had a battery attached to it. I want to understand these measurements.
I measured four devices each with ...
- 47
3
votes
0
answers
212
views
Measure a lithium-ion battery internal resistance curve over time [closed]
I am making a battery tester for lithium ion batteries. I want to measure the internal resistance, voltage and current.
I am skeptical of my results. On batteryuniversity, I read that the internal ...
- 31
0
votes
1
answer
236
views
Internal resistance measurement algorithm using DC method
I have a circuit that allows me to add a load to a battery and measure the voltage, current and temperature of the battery. I am trying to derive what is the best method for measuring the internal ...
- 1,679
0
votes
4
answers
86
views
Measuring Li-ion battery manage to get a number in mAh
How can a circuit functioning to measure Li-ion or else type battery manage to get its mAh capacity, how is this circuit's method ?
EDIT
Known it from a reviewer fed into an e-commerce site I forget (...
user285744
1
vote
2
answers
263
views
Measuring high-side vs low-side current, different readings?
simulate this circuit – Schematic created using CircuitLab
I'm measuring current consumption of several different handheld devices (calculators, flashlights, etc), at the [lithium] battery. ...
- 11
3
votes
2
answers
103
views
Measure voltage of motorcycle battery which varying voltage
I want to measure the voltage of my motorcycle battery using an microcontroller (ST32F401CE). The voltage from the battery is not a static value, since when riding, it'll be (according to the service ...
- 63
0
votes
1
answer
75
views
Battery charger vs Voltage or neither - They offer accurate power consumption? (mA)
I want to measure the power consumption not in theory but in time (after one day of use).
I don't have equipment to measure the power consumption but I have a battery charger that reports mA charged ...
- 39
1
vote
1
answer
341
views
Measuring battery resistance
I am trying to measure the resistance of a AA alkaline battery. The circuit I am using is shown in a photo below. I have also attached the values I obtained.
Somehow, the values I am getting ...
- 41
0
votes
3
answers
210
views
Possible to measure output of each battery in a battery bank?
I've been working on a small project to add electrical to my utility trailer. I have two 12V 20Ah lead acid batteries wired in parallel for running a mix of lights, a winch, cameras, a ventilation ...
0
votes
0
answers
154
views
How to measure remaining lithium battery charge accurately (destructively)?
I want to measure the remaining charge in batteries and my requirements may be somewhat unusual. I do not need to preserve the charge left in the battery and it doesn't have to be quick. All I want is ...
- 135
3
votes
1
answer
103
views
Is the carbon-zinc battery that I am characterising overloaded? Using HPPC
I am trying to characterise a 9 V battery using a pulsed load measurement. The battery is a 9 V zinc-carbon eveready super heavy duty. The load is a controllable constant current source. When I ...
- 1,856
0
votes
1
answer
720
views
Battery monitor on ADG507 and AD7705
I'm developing a battery monitoring circuit. There is a problem. I launch a survey of all ports ADG507. For the test, I connect only two power supplies instead of the first and second batteries. The ...
