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Girino - Fast Arduino Oscilloscope
Celtic Knot Bone Pendant - Triquetra Pendant
The battery management system will only ever supply the correct/safe/specified charging currents and voltages to the battery, it has its own DC-DC converters to power battery charging and phone operation at separate regulated voltages (independent from USB), and registers total-delivered and drawn charge to provide the battery gauge and further inform the charging algorithm's cutoff points. The more total power available to the BMS from the USB port, the more total current it can put into the battery at 4.2V or whatever the specified voltage is, while also operating the phone.DC-DC converters generally have a wide input, and with 6.5V you have 30% more power going into the BMS at any given available current.
Celtic Knot Bone Ring
Wooden engagement ring
You tested this? Charging at 6.5V? Ballsy. I hope it wasn't "your" phone...RE: boost charging an almost full battery. Most "experts" (and I say that because they don't all agree) claim that when a LiPo is approaching full, you should.- dramatically taper off current- pulse chargeBesides it not being recommended, I think you'd find that a 5V source would have trouble pushing a substantial current into an almost full LiPo. As it approaches full (4.2V) you need to be feeding it 4.3V to get any current to flow. I don't know what voltage you'd need to get, say 1.0A to flow. 0.6V of headroom doesn't leave much for supervisory/regulatory circuitry.I suspect the other reason is that while you're punching current into an almost full LiPo, it's very hard to monitor its real "fullness" even if you pulse charge (you'd have to load it between pulses to get an accurate read).The dangers of overcharging (bloating/fire) are just too high.
very helpful! thank you so much. but how about if i use a thicker paper to emboss the word to, can i still see the pattern clearly even with the light table or sunlight?
Modify a cheap USB charger to feed an iPod, iPhone or Samsung Galaxy
Thanks for this tutorial some great knowledge in here!Just a note...if the power source can handle it you can use a 270 ohm resistor in place of the 330 to get 2.75v across both data lines to charge at upto 2.1A without using loads of different resistors
Best website for this type of Samsung and other phone. Click here for more information... your daily tech dose... digitechon.com
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