Uploaded July 2016 | Updated September 2026, 1 day ago
How do you know your LifePO4 cells are healthy? Use this procedure to test Ri (Internal Resistance) using the delta voltage / delta current method.
Spreadsheet used in this video (read-only, make a copy to modify): docs.google.com/spreadsheets/d/18fTlt5Iz7xGArOTcshnR-g5ynyDMISTUyHA6hXjnfSE/edit?usp=sharing
PL8 Charge Graphs for 4S 2.5v to 3.35vpc: http://i.imgur.com/K7k19b0.png
SolarPanelTalk forum post (includes text instructions for procedure): solarpaneltalk.com/forum/off-grid-solar/batteries-energy-storage/lithium-ion/324429-lifepo4-gbs-amp-hour-testing-2-5v-to-3-6v-per-cell?p=324500#post324500
Products used in this video:
FMA PowerLab 8/PowerLab 6 Balance Cable: [affiliate] amzn.to/2aot66d
FMA PowerLab 8 v2: [affiliate] amzn.to/2aa88KW
Revolectrix Power Station: usastore.revolectrix.com/Featured_2/24-VDC-55A-1320W-Power-Station_2
GBS-LFMP100AHX 12V 100Ah 1.3kWh Lithium Battery: [affiliate] amzn.to/2cJFVO5
Fluke 87 Multimeter: [affiliate] amzn.to/1WKyVQC
Brady BMP21-PLUS Handheld Label Printer with Rubber Bumpers, Multi-Line Print, 6 to 40 Point Font: [affiliate] amzn.to/2ak0fit
How do you know your LifePO4 cells are healthy? Use this procedure to test Ri (Internal Resistance) using the delta voltage / delta current method.
Spreadsheet used in this video (read-only, make a copy to modify): docs.google.com/spreadsheets/d/18fTlt5Iz7xGArOTcshnR-g5ynyDMISTUyHA6hXjnfSE/edit?usp=sharing
PL8 Charge Graphs for 4S 2.5v to 3.35vpc: http://i.imgur.com/K7k19b0.png
SolarPanelTalk forum post (includes text instructions for procedure): solarpaneltalk.com/forum/off-grid-solar/batteries-energy-storage/lithium-ion/324429-lifepo4-gbs-amp-hour-testing-2-5v-to-3-6v-per-cell?p=324500#post324500
Products used in this video:
FMA PowerLab 8/PowerLab 6 Balance Cable: [affiliate] amzn.to/2aot66d
FMA PowerLab 8 v2: [affiliate] amzn.to/2aa88KW
Revolectrix Power Station: usastore.revolectrix.com/Featured_2/24-VDC-55A-1320W-Power-Station_2
GBS-LFMP100AHX 12V 100Ah 1.3kWh Lithium Battery: [affiliate] amzn.to/2cJFVO5
Fluke 87 Multimeter: [affiliate] amzn.to/1WKyVQC
Brady BMP21-PLUS Handheld Label Printer with Rubber Bumpers, Multi-Line Print, 6 to 40 Point Font: [affiliate] amzn.to/2ak0fit
