hardcore misery
New Member
mneary said:I didn't think you could find another major change to throw at us, but suddenly you've decided to charge three or more batteries (phones?) at a time. I don't think that anyone could have guessed that.
Now you're charging cellphones instead of standalone batteries? That's good, actually, because cellphones usually have a complete battery charger, well matched to their own battery. (The "charger" for cellphones is usually just a semi-regulated supply at around 120% to 150% of the battery voltage.)
But if you do it this way, you only need a simple power source. My cellphone (with a 3.7V 900mAH battery) uses a 4.8V 0.9A power supply. The power source doesn't need to be switched off; the phone knows and does everything.
One amp for three or more phones? My phone uses a 0.9A supply.
yes sir, this is our main design project...
just a few questions sir, to be able to supply 3 cellphone batteries with
3.7V/900mAH, do we need a 3A ac-dc transformer? as for the output voltage, we can only choose a value, greater than or equal to 3.7V, to accommodate 3 cellphone batteries?