josduart

4.282

hace 6 años

Do not forget that to charge a battery you need a voltage slightly higher than the nominal value of the battery.

JOSE MIGUEL SIRGO PASCUAL

6.953

hace 6 años

You have the basic concepts very confused.
Ohm's law prevents you from regulating voltage and current simultaneously.
For model spark plugs there are already specific circuits that work by regulating the tension.
And if you want to make a battery charger for 1.5 there are also current regulators for that.

JOSE MIGUEL SIRGO PASCUAL

6.953

hace 6 años

The approach of your query is a bit weird and impractical, you better get a 1.5 voltage regulator and feed it with the car battery as modelers do and that saves you a lot of problems.

javigna

7

hace 6 años

Hi Josduart, how are you? If I understand that I need more tension to compensate for the drop due to the load, in this case the battery. Thank you.
Hi Jose Miguel, I understand that I cannot regulate the voltage at the same time as the amperage, as I mentioned in the psot, I already have an arduino voltage regulator, I thought of another intensity regulator, connect them to both, to arrive with low current intensity to the voltage regulator, which I think has a limited amperage threshold and it will be cold if I send 1 or 2 amps. What I want is to make a charger for 1.2v batteries. Exactly, but 80 dollars come out

eduespalter

131

hace 6 años

The ARDUINO regulator is not correct, it is a regulator only the other is propaganda to confuse you.

javigna

7

hace 6 años

Jose Miguel, in Uruguay, the imax b6 charger is worth 110 dollars, it is a lot of money for us, you know that I have tested it and it does not load correctly, although I have the option that it has a microprocessor, and it sends me the desired voltage, but to the amperage It is 100 mAh, but in practice the rechargeable battery that I have of 1.2 v, it does not charge properly, charging very fast and autonomy nothing. I've tried it with several batteries, it automatically adjusts to the battery voltage, but it didn't work. The original charger of these batteries oscillates at 70 dollars, it seems a bit expensive for what it does

javigna

7

hace 6 años

I take the arduino regulator as an example to reduce electric voltage, or voltage, it has an adjustable potentiometer, but the intensity comes from flight and the load is obviously schumacher type, and the autonomy type ford 8 in v. Now I did not take into account the detail of the amperage that these cell phone supplies deliver, etc., I thought that they would send those 1000 mAh fully, and I have already tested with regulated 1.5 v sources and those sources or chargers get too hot after 5 minutes, of course , the battery I want to charge is 2500 mAh, of the NIMH type. It would charge me in 2 hours and 30 minutes, and that doesn't mean,

javigna

7

hace 6 años

I need a slow charge, very slow, and I have not been able to solve it with cell phone sources, tablets, devices, etc., in theory the chargers of these 1.2v batteries are very expensive, they are a large transformer type, most of them 110 v and with 50 output mAh, my idea is not to damage the batteries that the flights last for me longer, I know it is absurd what I want to do, but I have no money and I thought there would be solutions already manufactured, in Ali Express I did not find anything, the imax b6 charger is pure propaganda, charge the lipo and some other, but the nicd or nimh batteries charge them too fast and fried

javigna

7

hace 6 años

The original source delivers a maximum of 150 mAh and 1.25 V, I am looking to do something like that, the charges are long lasting and reliable. It can have 1.5 volts, or a little more intensity, but not 500 mAh, or 1000, being that if the battery or rather battery is 2500 mAh, I will use the full intensity that the source delivers , depending on the battery charge of course. I am grateful for the contribution, I am learning, but I see that it is half complicated to copy the original source model.

javigna

7

hace 6 años

In conclusion I do not want to make a charger, the chargers are made, I want to modify the voltage and intensity output of them, just that. I never mentioned in the post that I want to manufacture sources or chargers, but to reduce tensions etc, I have several chargers that I do not use and I thought I could reduce intensity, the tension would not be a problem with the current regulators, but I put emphasis on the flight intensity of these. If the battery is discharged at 1%, and it is 2500 mAh, and the source I have gives me 1000 mAh, it will charge it to 1000, in 2 hours and 30, correct me if I'm wrong, thanks