Uploaded July 2022 | Updated September 2026, 2 weeks ago
Check out Keysights Automotive Cybersecurity videos: https://keysig.ht/1fPZoZ
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Previous video: youtu.be/XOcA7ijtlCY
Photovoltaic Off-Grid System video: youtu.be/WU16AJwvNhE
LiFeYPO4 Battery Pack video: youtu.be/ewkj875qUmk
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Twitter: twitter.com/GreatScottLab
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Support me for more videos: patreon.com/GreatScott?ty=h
You can get the shown battery tester + batteries here: (affiliate links)
Aliexpress:
Capacity Tester: https://s.click.aliexpress.com/e/_ACkbW5
Internal Resistance Tester: https://s.click.aliexpress.com/e/_AY6d1j
12V 100Ah LiFePO4 battery: https://s.click.aliexpress.com/e/_AoMrtF
Amazon.com:
Capacity Tester: amzn.to/39ArSIP
Internal Resistance Tester: amzn.to/3QCmmq2
Amazon.de:
Capacity Tester: amzn.to/3tORtot
Internal Resistance Tester: amzn.to/3A5rKMz
12V 100Ah LiFePO4 battery: amzn.to/3HAwCe0
In this video I will be having a closer look at the battery of my solar off-grid garage in order to find out whether it is still working perfectly fine or needs to get replaced. The battery is a LiFeYPO4 type but during the video I will also include Li-Ion and LiPo batteries and show you exactly how you can test their capacity and internal resistance in order to determine if they are still good to go. These tests are of course also suitable for all other battery types which means you will be the "master" tester for all of them after finishing this video ;-) Let's get started!
Websites which were shown/mentioned in the video:
zketech.com/nd.jsp?id=14#_np=101_304
https://files.gwl.eu/inc/_doc/attach/StoItem/1580/ThunderSky-Winston-LIFEPO4-100Ah-TALL-Datasheet.pdf
statista.com/statistics/1267541/germany-monthly-wholesale-electricity-price
amperetime.com/collections/ampere-time-12v-lithium-lifepo4-battery-series/products/ampere-time-12v-100ah-lithium-lifepo4-battery
nothnagel-marine.de/media/downloads/Lithium_Akkus/Manual%20WB-LYP100AHA%20Winston-Lithium-ion%20Batterie.pdf
electronicdesign.com/technologies/test-measurement/article/21128843/keysight-technologies-measuring-dcir-of-lithiumion-cells
batteryuniversity.com/article/bu-902-how-to-measure-internal-resistance
https://lygte-info.dk/info/Internal%20impedance%20UK.html
Thanks to Keysight for sponsoring this video.
0:00 Is my Big Battery Pack still good to use?
1:34 Intro
2:06 Capacity of a Battery Explained
3:44 How to measure the Capacity
7:04 Internal (DC) Resistance Explained
8:04 Measuring the Internal AC&DC Resistance
9:43 Boombox Li-Ion Battery Test
10:19 Verdict
Check out Keysights Automotive Cybersecurity videos: https://keysig.ht/1fPZoZ
Free Altium Designer Trial: altium.com/yt/greatscott!
(AD, Paid Promotion)
Previous video: youtu.be/XOcA7ijtlCY
Photovoltaic Off-Grid System video: youtu.be/WU16AJwvNhE
LiFeYPO4 Battery Pack video: youtu.be/ewkj875qUmk
Facebook: facebook.com/greatscottlab
Twitter: twitter.com/GreatScottLab
Instagram: instagram.com/great.scott.lab
Support me for more videos: patreon.com/GreatScott?ty=h
You can get the shown battery tester + batteries here: (affiliate links)
Aliexpress:
Capacity Tester: https://s.click.aliexpress.com/e/_ACkbW5
Internal Resistance Tester: https://s.click.aliexpress.com/e/_AY6d1j
12V 100Ah LiFePO4 battery: https://s.click.aliexpress.com/e/_AoMrtF
Amazon.com:
Capacity Tester: amzn.to/39ArSIP
Internal Resistance Tester: amzn.to/3QCmmq2
Amazon.de:
Capacity Tester: amzn.to/3tORtot
Internal Resistance Tester: amzn.to/3A5rKMz
12V 100Ah LiFePO4 battery: amzn.to/3HAwCe0
In this video I will be having a closer look at the battery of my solar off-grid garage in order to find out whether it is still working perfectly fine or needs to get replaced. The battery is a LiFeYPO4 type but during the video I will also include Li-Ion and LiPo batteries and show you exactly how you can test their capacity and internal resistance in order to determine if they are still good to go. These tests are of course also suitable for all other battery types which means you will be the "master" tester for all of them after finishing this video ;-) Let's get started!
Websites which were shown/mentioned in the video:
zketech.com/nd.jsp?id=14#_np=101_304
https://files.gwl.eu/inc/_doc/attach/StoItem/1580/ThunderSky-Winston-LIFEPO4-100Ah-TALL-Datasheet.pdf
statista.com/statistics/1267541/germany-monthly-wholesale-electricity-price
amperetime.com/collections/ampere-time-12v-lithium-lifepo4-battery-series/products/ampere-time-12v-100ah-lithium-lifepo4-battery
nothnagel-marine.de/media/downloads/Lithium_Akkus/Manual%20WB-LYP100AHA%20Winston-Lithium-ion%20Batterie.pdf
electronicdesign.com/technologies/test-measurement/article/21128843/keysight-technologies-measuring-dcir-of-lithiumion-cells
batteryuniversity.com/article/bu-902-how-to-measure-internal-resistance
https://lygte-info.dk/info/Internal%20impedance%20UK.html
Thanks to Keysight for sponsoring this video.
0:00 Is my Big Battery Pack still good to use?
1:34 Intro
2:06 Capacity of a Battery Explained
3:44 How to measure the Capacity
7:04 Internal (DC) Resistance Explained
8:04 Measuring the Internal AC&DC Resistance
9:43 Boombox Li-Ion Battery Test
10:19 Verdict
