In this video I test the Lifepo4 battery SJY 12V 100Ah from the store on Aliexpress. In fact, this is one of the cheapest assembled Lifepo4 batteries. I test for capacity, resistance, disassemble and show the internal design. 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 receipt without disassembly.
This seller no longer sends orders from the Aliexpress website. Motivating this by the short term of buyer protection on Ali. Probably people open a lot of disputes, because of the long delivery and the Aliexpress platform does not really like it. Therefore, SJY offers to buy a battery in their store on Alibaba:
*🔋Lifepo4 batteries 12/24/48V* from the SJY store https://t.ly/sj1
*🔋Lifepo4 cells 105/280Ah* from the SJY store https://t.ly/sj2
Register an account on Alibaba at this link https://t.ly/abreg and get a 40💲 discount
Also, as an option, you can consider the Lifepo4 battery Powerwin (on Aliexpress). There is already a review on the channel. In general, a good battery for an adequate price.
*🔋Lifepo4 batteries Powerwin 12/24/48V https://t.ly/S02
🎬 Playlist with videos on LFP and others. Battery https://t.ly/LFP
*🔖Telegram channel* https://t.me/VM_YOU
*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 of the automotive plan.*
The nominal power is indicated. Pure sine. 🔌🔋
🔌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
Testing video https://t.ly/IN5
🎬 Playlist of videos on inverters https://t.ly/inV
*☀️Deye inverters and 🔋batteries.* Quality
and reliability. Shop on Alibaba. Free
delivery from Europe in 5-10 days. Good price💲
☀️Deye hybrid inverters 5-20kW https://t.ly/d-inv
🔋Deye Lifepo4 batteries https://t.ly/d-akb
Register an account on Alibaba at this link
https://t.ly/abreg and get a 40💲 discount
🔌☀️ *Solar hybrid inverters with MPPT.*
Battery charge from the sun and the network. Mixing.
Uninterruptible power supply. 🔌☀️
☀️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 of
solar hybrid inverters https://t.ly/Sol
⚡ *Chargers* ⚡
Charger 12-200v, 600-1500W (I, U regulation) https://t.ly/cg4
Charger 12V 6A https://t.ly/Cg1
Charger 12V up to 100A https://t.ly/cg2
Charger 24V https://t.ly/cg3
Charger Liitokala 1.2-3.7V https://t.ly/cg5
🎬 Playlist with videos on chargers https://t.ly/cgv
📟 *Measuring and testing devices* 📟
Clamp-multimeter HT208D https://t.ly/htd
Clamp-multimeter UNI-T https://t.ly/Uni
Battery tester EBC-A20 https://t.ly/ZKE
TOOLTOP thermal imager https://t.ly/Too
Battery internal resistance tester YR1035+ https://t.ly/1035
Battery internal resistance tester RC3563 Battery Resistance Tester https://t.ly/RC3
DL24 Electronic Load https://t.ly/DL2
ET120M Portable Oscilloscope 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 instruments https://t.ly/vym
🛠️ *Tools and auxiliary equipment* 🛠️
Laboratory power supply https://t.ly/lbp
Riden LBZH panel https://t.ly/rdn
Docreate spot welding https://t.ly/wel
Dynamic nozzle 2-200Nm https://t.ly/mxi
*Support the channel* https://t.ly/don
00:00 overview and equipment
01:41 characteristics and parameters
04:18 how to check the battery, whether it is made with new cells
06:39 battery weight
06:44 charging the battery with a current of 40A with the MS-1500 power supply
08:07 testing the battery capacity via DL-24
09:06 internal resistance of the assembled battery
09:14 internal execution
13:06 lifepo4 cells
15:43 internal cell resistance
17:43 cell capacity test with 40A current
19:17 BMS parameter check
22:03 temperature protection and foam flammability check
24:50 testing under load 170-213A
28:47 long-term load 580W and given Wh
35:24 sending battery with Ali with two track numbers
36:32