WEBVTT

00:00:01.634 --> 00:00:03.003
Hmmm...

00:00:03.003 --> 00:00:05.171
Why is my car remote not working?

00:00:05.672 --> 00:00:07.507
Looks like I need to get closer to the car.

00:00:07.874 --> 00:00:08.408
(CAR UNLOCKS)

00:00:08.408 --> 00:00:09.843
Ah, now it's working.

00:00:09.843 --> 00:00:12.112
Hey!
Seems like your battery is low.

00:00:12.679 --> 00:00:14.948
Yeah!
I realized that as time goes by,

00:00:14.948 --> 00:00:17.050
I would need to get closer
to my car to unlock it.

00:00:18.051 --> 00:00:22.489
This is because the battery capacity
affects the range of the transmitter.

00:00:22.589 --> 00:00:25.525
The lower the battery, the shorter
the transmission range.

00:00:25.525 --> 00:00:26.459
Let's go to the lab.

00:00:26.459 --> 00:00:29.896
I'll show you how to evaluate
the performance of coin cell batteries.

00:00:30.330 --> 00:00:33.700
Hi, my name is Kenny,
product manager at Keysight.

00:00:33.900 --> 00:00:36.469
And I'm Shahmi,
an Application Development Engineer.

00:00:36.870 --> 00:00:41.574
Today, we are going to have to look
at Keysight’s E36731A

00:00:41.841 --> 00:00:43.810
battery emulator and profiler

00:00:43.910 --> 00:00:48.248
and how you can use it to accurately,
efficiently evaluate the performance

00:00:48.248 --> 00:00:52.318
of cell batteries under various
conditions and usage patterns.

00:00:52.819 --> 00:00:57.023
We have with us, Shahmi, to demonstrate
how to use this instrument

00:00:57.223 --> 00:00:59.659
to ensure your coin cell batteries
are up to the task.

00:01:00.627 --> 00:01:03.463
The first step of testing a battery
is through profiling it.

00:01:03.863 --> 00:01:06.933
Profiling enable us to gather
detailed performance data

00:01:07.400 --> 00:01:09.069
about our coin cell battery.

00:01:09.436 --> 00:01:12.072
So when you mentioned performance data,

00:01:12.072 --> 00:01:14.607
what are the parameters
that are being captured?

00:01:15.141 --> 00:01:18.378
We capture critical parameters
like the open-circuit voltage,

00:01:18.378 --> 00:01:20.547
internal resistance,
and state of charge.

00:01:21.114 --> 00:01:22.882
These parameters are a must

00:01:23.149 --> 00:01:25.185
to understand the performance of a battery.

00:01:25.952 --> 00:01:28.521
Through Keysight BV9210B software,

00:01:28.521 --> 00:01:32.625
We are able to use this data to create
an accurate model of the battery.

00:01:32.725 --> 00:01:36.729
This profile mimics the behavior
of the battery under various condition

00:01:36.963 --> 00:01:40.934
providing is a solid foundation
for the next step, which is emulation.

00:01:40.967 --> 00:01:43.002
Now let's talk about emulation.

00:01:43.636 --> 00:01:48.308
Why do we need to emulate a battery
and what are the benefits of emulating it?

00:01:48.374 --> 00:01:51.377
This is one of the core capabilities
of the instrument.

00:01:51.578 --> 00:01:55.882
By emulating our coin cell battery,
we are able to replicate its behavior

00:01:55.882 --> 00:01:59.786
under a wide array of conditions
without needing a physical battery.

00:02:00.887 --> 00:02:02.222
That's interesting.

00:02:02.222 --> 00:02:05.692
So I can test a device
without needing a physical battery?

00:02:06.559 --> 00:02:09.529
But I was wondering,
as batteries age,

00:02:09.762 --> 00:02:11.764
wouldn’t the internal resistance increase?

00:02:12.499 --> 00:02:13.500
Are we able

00:02:13.900 --> 00:02:17.137
to measure and emulate
different internal resistances?

00:02:17.971 --> 00:02:19.038
Good question.

00:02:19.038 --> 00:02:21.741
One of the most impressive
features of the instrument

00:02:21.741 --> 00:02:24.644
is its flexible
internal resistance emulation.

00:02:25.178 --> 00:02:26.312
With coin cell batteries,

00:02:26.513 --> 00:02:29.115
resistance can range from 10 ohms
when fully charged

00:02:29.115 --> 00:02:31.751
to over 70 ohms when
discharging the instrument.

00:02:32.385 --> 00:02:33.887
The instrument is able
to mimic this

00:02:34.320 --> 00:02:37.290
with a programable internal resistance
up to 1,000 ohms.

00:02:37.624 --> 00:02:41.628
The software even includes predefined
models for the common coin cell battery,

00:02:41.728 --> 00:02:45.265
where you tweak the internal resistance
and other parameters.

00:02:45.899 --> 00:02:49.502
If you would like to study how adding
effective battery capacity

00:02:49.569 --> 00:02:53.506
that is one more impressive
capabilities of the E36731A

00:02:53.506 --> 00:02:54.841
which is battery cycling.

00:02:55.441 --> 00:02:55.909
Cycling.

00:02:56.042 --> 00:02:59.712
So its able to perform a discharge
in a loop?

00:02:59.812 --> 00:03:00.914
Yes, that's right.

00:03:00.914 --> 00:03:04.417
Cycling involves
charging and discharging the battery repeatedly

00:03:04.417 --> 00:03:08.621
to assess its lifecycle
and measure how it will perform over time.

00:03:09.422 --> 00:03:10.657
Using the instrument,

00:03:10.657 --> 00:03:13.860
you can design
custom sequences of charge, rest

00:03:14.127 --> 00:03:16.529
and discharging a battery
at various test conditions

00:03:16.529 --> 00:03:18.765
to simulate real world scenario

00:03:18.898 --> 00:03:22.168
and understand how you better perform
and the actual use.

00:03:22.769 --> 00:03:26.272
You can perform up
to 1,000 cycle operations on the battery

00:03:26.272 --> 00:03:30.043
to determine the effect of aging
and evaluate the battery's reliability.

00:03:30.109 --> 00:03:30.977
- 1,000 cycles?

00:03:31.344 --> 00:03:32.312
- Exactly.

00:03:32.312 --> 00:03:36.316
And each cycle could have up to 200 charge
discharge steps.

00:03:36.416 --> 00:03:39.519
With the battery emulation software,
you would be able to monitor

00:03:39.519 --> 00:03:44.824
the battery's vital parameters, such
as capacity, terminal voltage, current

00:03:44.824 --> 00:03:48.695
and time to gain a detailed insights
into your battery lifecycle.

00:03:49.529 --> 00:03:50.496
So there you have it.

00:03:50.830 --> 00:03:54.500
A comprehensive walkthrough
on how to test your coin cell batteries

00:03:54.500 --> 00:03:57.704
using the E36731A.

00:03:57.804 --> 00:04:01.474
Its profiling, emulation, cycling capabilities

00:04:01.708 --> 00:04:06.746
make it a versatile and indispensable tool
for all your battery testing needs.

00:04:06.946 --> 00:04:11.818
Step into the future of battery testing
using Keysight battery emulator and profiler

00:04:12.252 --> 00:04:15.321
paired with the advanced battery
test and emulation software.

00:04:15.655 --> 00:04:18.057
Visit keysight.com and get yours now.

00:04:18.224 --> 00:04:18.858
Thanks for watching.