LiTime LiFePo4 battery test

I tested Li Time batteries with LiFePO4 12V 200Ah 2,560 kWh cells (sic!)
Batteries can be purchased in Germany using current promotions and the code: slawomir
LiTime: www.litime.de/...
12V 200Ah: bit.ly/3K60MsO
12V 100Ah: bit.ly/3JZOtyw
12V 200Plus: bit.ly/3YhGHUO
12V 50Ah: bit.ly/3lgzohu
48V 100Ah: bit.ly/3ltCdMc
Ampere Time: www.amperetime...
12V 200Ah: bit.ly/3YEp1Cz
12V 100Ah: bit.ly/40McpuT
24V 100Ah: bit.ly/3Ydei2d
12V 50Ah: bit.ly/3lgzohu
Amazon store
LiTime Amazon: bit.ly/3HIqKA0
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I did not check the lifetime, they write to the Germans (check the links below) that it is 15,000. cycles, which I do not believe, but these cells easily withstand 3-4 thousand cycles without significant loss of capacity, i.e. a minimum of 10 years of daily charging and discharging.
Test results shown in the video:
Battery 1
Charging, downloaded 2.957 kWh
Discharging, gave back 2.698 kWh
Efficiency up to 91%
battery 2
Charging, it took 2,950 kWh
Discharging, gave back 2.633 kWh
89% efficiency
In series Battery 1 + Battery 2
Charging, consumed 5.956 kWh
Discharging, gave 5.408 kWh
Efficiency up to 91%
I charged and discharged to full capacity until the protection in the BMS batteries worked.
Maximum current 160A (the inverter turned off, not the battery)
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Photovoltaic panels
Date: February 14, 2023
Subject: Testing LiFePO4 batteries by Li Time LFP
Charging current ca.20A, discharging ca.15A
Li Time 1 - discharge to the end.
Voltage -10.82V on DC wattmeter, 10.7V 0% on BcV
Wh -2.698 Wh on DC wattmeter, (2.294 Wh on AC wattmeter after inverter)
Li Time 2 - discharge to the end
Voltage - 11.15V on DC wattmeter, 11.0V 0% on BcV
Wh - 2.633 Wh on DC wattmeter, (2.241 Wh on AC wattmeter after inverter)
Li Time 1 - fully charged
Voltage -13.74V
Wh 2.957 Wh on DC wattmeter (AC socket 3.734 Wh including charger)
Li Time 2 - fully charged
Voltage -13.76V
Wh 2.950Wh (5.907 - 2.957) per watt. DC (AC socket 3.749 Wh incl. charger)
Li Time 1 + Li Time2 - discharge to the end
Wh (total) -5.408 Wh (AC socket after converter 4.835 Wh)
Voltage Li Time 1 -11.24V
Voltage Li Time 2 -11.51V
Li Time 1 + Li Time2 - fully charged
Wh (total) 5,956 Wh (AC outlet 6,829 Wh)
Voltage Li Time 1 + Li Time 2 -28.66 V
Battery 1 - Discharging 2.698Wh (charging 2.957Wh) = 91%
Battery 2 - Discharging 2.633Wh (charging 2.950Wh) = 89%
Charging 2.957 + 2.950 = 5.907 Wh
Discharge 5.408 Wh
91.5%
Losses
Charger 3.734 kWh - 2.957 kWh = 0.777 kWh charged by the charger
Discharge 2.698 kWh - 2.294 kWh = 0.404 kWh consumed by the converter
DC to DC 2.957 kWh - 2.698 kWh = 0.259 Wh lost (91% efficiency)
AC to AC = 3.734 kWh - 2.294 kWh = 1.440 kWh lost (efficiency 61%)
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AC/DC current clamp meter AMPMETER UT203+ - bit.ly/3Zbd4of
Car Voltage Converter 24V 230V 2000W -bit.ly/41koqYT
Battery charge indicator 10-100 V - bit.ly/3XYRSAO
DC Current Meter DC 6.5-100V LCD Digital 20A - bit.ly/3IN2M8z
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