It's an all-in-one powerbox with LiFePO4 battery for $50
Apr 7, 2024 12:03:06 GMT -6
feralferret likes this
Post by papaof2 on Apr 7, 2024 12:03:06 GMT -6
- so why didn't I mention it sooner??
www.aliexpress.us/item/3256806247726774.html
1. I've NOT yet opened the case to verify LiFePO4 cells.
2. The "24000mAh" battery is their estimate of the power of all the cells if in parallel. In the 4S configuration for LiFePO4 to deliver 12 volts, it would be about a 12 volt 6AH battery.
3. 12 volts at 3amps is not particularly useful unless you're powering a 12 volt radio or music player - not enough to start any of the small inverters with no load.
4. The "100 watt" AC power is just barely that.
5. The Output waveform of "correction wave" is a naked, ugly square wave. It works with light bulbs and non-electronic soldering irons but that's about all I would trust it with.
6. The AC output frequency of "50Hz/60Hz ±2Hz" is wishful thinking as the frequency wanders constantly - more like +/- 8Hz - the frequency standard for grid-delivered power is 60 +/-0.1Hz and a deviation of -0.5Hz could trigger load-shedding (generator slows when there is too much load - like you riding a bike up hill).
7. The AC output voltage of 220V/110V ±15% is accurate (at least for the 110 volt version). 110 volts * 15% = 110 * 0.15 = +/- 16.5 volts or 93.5 volts to to 126.5 volts.
Today it's $48.58 + tax or right at $50.
Positives:
1. Testing the battery capacity at the 12 volt output got right at 7AH.
2. The LED light works on high, low and flash. My guess is something over 8 hours on low but I did NOT test it.
3. The USB ports are at least close to their claimed outputs.
www.aliexpress.us/item/3256806247726774.html
1. I've NOT yet opened the case to verify LiFePO4 cells.
2. The "24000mAh" battery is their estimate of the power of all the cells if in parallel. In the 4S configuration for LiFePO4 to deliver 12 volts, it would be about a 12 volt 6AH battery.
3. 12 volts at 3amps is not particularly useful unless you're powering a 12 volt radio or music player - not enough to start any of the small inverters with no load.
4. The "100 watt" AC power is just barely that.
5. The Output waveform of "correction wave" is a naked, ugly square wave. It works with light bulbs and non-electronic soldering irons but that's about all I would trust it with.
6. The AC output frequency of "50Hz/60Hz ±2Hz" is wishful thinking as the frequency wanders constantly - more like +/- 8Hz - the frequency standard for grid-delivered power is 60 +/-0.1Hz and a deviation of -0.5Hz could trigger load-shedding (generator slows when there is too much load - like you riding a bike up hill).
7. The AC output voltage of 220V/110V ±15% is accurate (at least for the 110 volt version). 110 volts * 15% = 110 * 0.15 = +/- 16.5 volts or 93.5 volts to to 126.5 volts.
Today it's $48.58 + tax or right at $50.
Positives:
1. Testing the battery capacity at the 12 volt output got right at 7AH.
2. The LED light works on high, low and flash. My guess is something over 8 hours on low but I did NOT test it.
3. The USB ports are at least close to their claimed outputs.