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Nice little tester and cheap to check any device that charges via USB and see if the charger or power bank provides the correct voltage and current and how much. 5V is the standard voltage of the USB port, (first photo, charging 21700 batteries in a charger that supports max 2A) but if the device being charged (e.g. mobile phone) and of course the charger support QC3, it will show a voltage above 5V. Usually, you will see around 9V/2A or even more depending on the wattage of the charger (second photo, charging mobile phone with QC3).
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Molicel P42A Rechargable Battery 21700 Li-ion 4000mAh 3.7V 1pcs
at 2023-06-16I bought some to replace the Samsung 40Ts that started to die and couldn't hold up. They are supposed to have about 3,750 mah, but I have seen the XTAR VC4S with 3,900 mah. I don't know if the 450 mah difference up to the advertised 4,200 is a reasonable difference, if it is indeed original. Either way, it seems to outperform the Samsung 40T, providing consistent currents until the end and lasting much longer. It lasts almost 24 hours for me at 52 watts, while the Samsung 40T lasted a maximum of 6-7 hours. So, as far as 21700 batteries are concerned, I am at least giving up on Samsung and moving towards Molicel.
- Value for money
- Expected capacity
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After 2 and something years with the previous Max 100, an upgrade was necessary since the screw cap came off and there was burn-in on the screen pixels. It was worth the money and still works. The new Max has a similar design line but with more compact dimensions, and I find it better and more convenient. The surface on the pole has decreased, and Zeus barely fits. Larger vaporizers will hang. The quality seems to have improved slightly with the screen and materials compared to before, and we'll see how long it will last. It has fallen 2-3 times and luckily it survived. Apart from minor scratches on the paint, it didn't suffer anything else. Overall, satisfied so far. If it lasts as long as the old one, I won't have any complaints.
- Weight
- Construction quality
- Small size
- Value for money
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It's great to have it in bed when you're lying down or on the couch to rest your plate or laptop on. It's the right size and very lightweight. The legs fold and have foam edges to prevent slipping. It does its job for 13 euros.
- Stability
- Construction quality
- Expected size
- Value for money
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