In this video, I test the Lifepo4 SJY 12V 100Ah battery from the Aliexpress store. In fact, this is one of the cheapest Lifepo4 batteries assembled. I will test for capacity, resistance, disassemble and show the internal performance. The battery is assembled on the basis of new Gotion cells with a capacity of 102Ah. In the video, I will give general recommendations on how to check the battery after receiving it without disassembly.
🔋Lifepo4 batteries 12/24/48V from the SJY store https://t.ly/S02
🔋Lifepo4 cells 105/280Ah from the SJY store https://t.ly/S01
🎬 Playlist with videos on LFP, etc. AKB https://t.ly/LFP​

Useful Aliexpress Links
🛡🔋 Battery protection boards (BMS) for Lifepo4, Li-ion, LTO 🛡🔋
JK (Jikong) BMS of the new generation https://t.ly/JKN
JK (Jikong) BMS https://t.ly/JKB
LCD displays for JK BMS https://t.ly/JKD
100Balance BMS: https://t.ly/B100
Smart balancer 100Bal https://t.ly/B01
Daly BMS https://t.ly/Dly
Smart balancer Daly https://t.ly/baD
🎬 Playlist with videos on BMS https://t.ly/BMS


🔌🔋 Inverters 12-48V/220V automotive plan.
Nominal power is indicated. Clean sinus. 🔌🔋
🔌Decent 12-48V 2.5kW https://t.ly/in1
Testing the 12V version https://t.ly/IN1
Testing the 24V version https://t.ly/IN2
🔌DATOUBOSS for two voltages 12/24V https://t.ly/Dat
Video with tests https://t.ly/IN7
🔌DATOUBOSS 12V 1-1.5 kW https://t.ly/in3
Video with tests https://t.ly/IN4
🔌Baseus 12V 500W https://t.ly/in5
Video with tests https://t.ly/IN6
🔌 Budget. 12-24V 1.5kW https://t.ly/in4
Video with tests https://t.ly/IN5
🎬 Playlist with videos on inverters https://t.ly/inV


🔌☀️ Solar hybrid inverters with MPPT.
Battery charge from the sun and the network. Adulteration.
Uninterruptible power supply. 🔌☀️
☀️Deye https://offer.alibaba.com/cps/pi8je8b...
☀️PowMr 1.5/3kW 12/24V https://t.ly/pw1
☀️PowMr 4.2/6.2kW 24/48V https://t.ly/pw2
☀️PowMr 10.2kW 48V https://t.ly/pw3
☀️ECGSOLAX 1.0/1.5kW 12/24V https://t.ly/Ecg
☀️ECGSOLAX 4.2/6.2kW 24/48V https://t.ly/EcG
☀️Easun/ECGSOLAX 1.8/3.0kW 12/24V https://t.ly/Eas
☀️SRNE 5kW 48V https://t.ly/sr5
☀️GROWATT 6.0kW 48V https://t.ly/Gro
☀️EPEVER MPPT controller 10-40A https://t.ly/Epe
🎬 Playlist with video reviews and tests
solar hybrid inverters https://t.ly/Sol


⚡ Chargers ⚡
Charger 12-200v, 600-1500W (regulation I, U) https://t.ly/cg4
Charger 12V 6A https://t.ly/Cg1
Charger 12V up to 100A https://t.ly/cg2
Rechargeable 24V https://t.ly/cg3
Charger Liitokala 1.2-3.7V https://t.ly/cg5
🎬 Playlist with videos on charging devices https://t.ly/cgv


📟 Measuring and testing devices 📟
Clamp-multimeter HT208D https://t.ly/htd
UNI-T multimeter pliers https://t.ly/Uni
Battery tester EBC-A40L https://t.ly/ZKe
Battery tester EBC-A20 https://t.ly/ZKE
Thermal imager TOOLTOP https://t.ly/Too
Internal tester battery resistance YR1035+ https://t.ly/1035
Internal tester RC3563 battery resistance https://t.ly/RC3
Electronic load DL24 https://t.ly/DL2
Portable oscilloscope ET120M https://t.ly/osc
T7 transistor tester https://t.ly/tT7
HV transistor tester 120-2700V https://t.ly/tHV
🎬 Playlist with videos on measuring devices https://t.ly/vym


🛠️ Tools and auxiliary equipment 🛠️
Laboratory power supply https://t.ly/lbp
Riden Health Care Panel https://t.ly/rdn
Spot welding Docreate https://t.ly/wel
Dynamometric nozzle 2-200Nm https://t.ly/mxi
Digital microscope AD209 https://t.ly/ANd
Crimp for wires 6-50mm2 https://t.ly/50b
Hydraulic press 4-70mm2 https://t.ly/YQK
🎬 Playlist with videos on instruments https://t.ly/Ins


⚙ Periphery ⚙
Wattmeter for a 220V outlet https://t.ly/Wtm
Din-rail wattmeter https://t.ly/DIN
Silicone wires 1-26AWG https://t.ly/Syl
Power wires pressed 0-8AWG https://t.ly/Dri
Soft start for pumps https://t.ly/Sof
AVR automatic generator https://t.ly/ats
Gas. generator carburetor https://t.ly/GAZ
Wi-Fi machine with wattmeter https://t.ly/Wif
🎬 Playlist with videos on the periphery https://t.ly/Per

Support the channel https://t.ly/don

00:00 inspection and equipment
01:41​ characteristics and parameters
04:18​ how to check the battery, whether it is made on new cells
06:39​ battery weight
06:44​ charge the battery with a current of 40A using the MS-1500 power supply unit
08:07​ battery capacity testing through DL-24
09:06​ ext. resistance of the battery assembly
09:14​ internal execution
13:06​ lifepo4 cells
15:43 ext. cell resistance
17:43​ cell capacity test with a current of 40A
19:17 checking the BMS parameters
22:03 checking temperature protection and foam for flammability
24:50 testing under a load of 170-213A
28:47 long-term load 580 W and delivered W*h
35:24​ shipment of AKB with Ali with two track numbers
36:32​ conclusions