I replaced mine 3400mah each high drain.

Warranty replacement 😊

@@PneumaticFrog yeah but no Idea How to claim it though. Support seems inexistent

@@iacamigevaerd376 where'd you buy it from though?

Could you provide the reference or a way to actually bypass the battery and make it work directly through USB@@SpicyRoll-m4r

I don't recommend using this pump for this application. While it is dry type and there is no liquid lubricant, the piston is lubricated with dry lubricant, and will wear down and release particles. The air hoses etc probably will introduce a rubber smell into your coffee. Furthermore, you would need a rather large amount of pressure. Typically in an espresso machine the pressure is hydraulic (using water) and about 70-130psi or so I believe. You would have to use a suitable container. High pressure air is significantly more dangerous than high pressure water because air expands as it is released, so if there is any glass involved it could burst. If you decide to go down this route, I would advise the use of pressure-rated components. Please note that this is not professional engineering advice. If you are looking for a portable solution to generate air pressure, depending on what kind of parameters you need, I would recommend trying to look for a diaphragm pump, and passing the air through a good particulate and vapour filter.

nominally 7.2 volts but can go up to 8.4 V when fully charged, min 6V when empty

There is a video of that, easy asfk, but i like to know where to get it, i guess aliexpress

You should verify that the lubricant you want to use is compatible with rubber. It seems that silicone typically has good compatibility so it should work correctly.

​@@liminalsunset hello Larry, One question i just got my new S1 today from Amazon, and the first thing i chequed was the USB PORT, and i find i have the old mini charging port. WTF is this ok or normal ??? For all i seen one of the major things they changed on the S1 was this, they fitted a regular USB PORT wich i dont have. 😮😮😮😮😮😮

@@2fast4you25 Does your display have the 7 segments or the little dots as well? There's definitely something up. I would suggest returning the product and buying from a different seller as you're likely to get another wrong one if you just get another

@@liminalsunset it all checks out as a S1 exept it came with a mini charging port

​@@2fast4you25return it it's fake

1) wait some time to allow the device to cool down after you are using it, and/or let it sit for a few hours. 2) use a known working or different charger and cable and leave it plugged in for a few hours Do not attempt the following unless you are skilled and knowledgeable in electronics. Any information below is at your own risk. 3) open the device and measure voltage of battery cells individually. If voltage between 2.0 and 4.2 V, use a current limited battery charger to carefully charge battery cells directly and in a balanced way at 500 mA until at least 3.6V per cell 4) if the battery voltage is below 2.0V per cell, replace the battery 5) if the battery still does not function, try to disconnect and reconnect the BMS to the battery cells.

@@liminalsunset thank you, I will try first two options first, and will write you later

What is a regular USB port? MicroUSB and USB-C both are "regular" USB ports.