What is needed to block the current in the circuit ~ 3.7v?

Question

Electronics

Hello.
Given: A
car key that is charged from the steering column, it uses a VL 2330
rechargeable battery. The task is to replace the battery with a conventional non-rechargeable battery. The bottom line, as I understand it, is that you can’t charge a regular battery, hence the question of how to limit the current that goes to the power source, it only occurred to me to solder a diode or its analogue to the positive (or negative) side of the circuit. Because I don’t have much knowledge in electronics, so I don’t know which element needs to be installed.
Please advise what should be used in my case?
Thank you.

Answer 1

The idea is correct, it remains only to choose the right diode. It must be a Schottky diode so that the voltage drop is not so high. Good options:
1N5817 - voltage drop (the less the better) 0.45V (and the case is convenient)
BAT60AE6327HTSA1 - voltage drop 0.35V (but the case is uncomfortable)
In case of excessive perfectionism, you can try to use a "zero" voltage drop circuit, but this more difficult - at least because there are several details in it and all this will have to be somehow mounted and pushed in.

Answer 2

power from 5 volts and don’t worry
if it’s so boring / correct,
then hook 1-2 diodes into the circuit, each will have carrion ≈0.6 volts