Using NiCd Charger (YX-3515A6) for 4.8V NiMH Batteries: Compatibility and Potential Damage

Hello, I have a battery charger Nothing: D package 4.8V 400 Mah
Data on the charger:

Model yx-3515A6
Output DC 4.8V 150mA

Do you want to buy batteries with a larger capacity but NiMh , the charger will be suitable for charging this type of battery, will the cells be damaged?
I ask because nowhere is it written that the charger is for such and no other links.

A simple Ni-Cd charger will not detect the end of Ni-MH charging.

Ni-MH have a much smaller, reduced voltage on them after charging; detection by method - Delta V

I'm afraid this charger doesn't have a Delta U charging system.
If so, it is equally well suited for charging NI-MH.
Maybe some photo of the nameplate?

Adds a photo




There is another problem because I do not know whether the charger has fallen or the battery.

The voltage on the battery is connected to the device very quickly and gives signs of discharge, however, when measuring the voltage it indicates about 4V.
Charging does not start when connected to a charger.
I tried to discharge the battery to about 2V and still the charger does not light the charging diode.
After connecting to the receiver, the battery loses voltage, but after disconnection it reappears after a while.
It looks like there is voltage but no current?

I will explain that the battery pack comes from the son's tank set and the poor cannot drive because the tanks stop after a while, they have not been used for about a year. The first charging after a break was normal, now the chargers are not charging. (There are two and the signs are identical)
I was thinking about buying new batteries with more capacity.

It looks like you will need to buy new ones.
These probably have lost their capacity, voltage increases quickly during charging, and decreases quickly during operation. The classic case ...

The charger looks like a regular power supply with only a current limitation.

So NiMh or NiCd to buy?
Of course, the charger will charge the battery with twice the capacity twice as long.

This charger is not suitable for charging NiMh batteries.

Because in general it is a charger / power supply / for charging batteries in the device.

Here, to keep working, you need to buy NiCd batteries.

They can be bought in the industrial version - with soldering plates

Today I measured the chargers, give 0.01 V electricity
I connected the battery for a short time to the universal charger for charging the batteries / sticks - the charger started charging ...

So both chargers from the toy set have given up the ghost.

I am currently charging the batteries with the phone charger.

As the charger has 5 V 350 mA, I connected the batteries in parallel, I do not know if it is correct. When connecting in series, the voltage dropped during charging.
I will control the battery temperature.

After about 1.5 hours of charging, the temperature of the cells is unlikely to indicate a rise.
After test connection to the toy, everything indicates battery charging. The vehicle does not show the battery being used too quickly.

I wonder if the charger will limit the charging itself, or if you need to watch the charging time.
In previous chargers, you had to charge the battery for about 3-4 hours

kapitanwasyl wrote:

I wonder if the charger will limit the charging itself, or if you need to watch the charging time

If this charger has a 5V output voltage (stabilized) like typical USB phone chargers, these batteries will never be fully charged, because they need a charger that will give 6V (stabilized voltage), because this is the final charging voltage a package of 4 NiCd batteries (4.8V is the nominal voltage, not the final charging. Analogously, the car battery is called 12 volt, and the car's charging voltage is 14-14,4V). From phone chargers the best charger from the old Nokia would be the best, the one with a thicker plug, it is able to charge this package, but you need to watch the time. The 6V stabilized power supply will also fully charge these batteries and you would not have to watch the charging time.

The phone charger (no matter if USB or old phones) is just a power supply and is not suitable for charging batteries without an external charging controller.

Here, this power supply charger from the description indicates charging and can act as a current source and the charge indication is a measurement of battery voltage and nothing more.

If it is possible, you have to undress it and show what is inside.

Just if the chargers were dismountable .....
The batteries were charged to 5.7V
This afternoon we will drive around the vehicles, then I will write how long it lasted.

kapitanwasyl wrote:

If you want to buy rechargeable batteries with higher capacity but NiMh,

It's best to build a solid charger from scratch, e.g. on the immortal MAX712.

HD-VIDEO wrote:

The phone charger (no matter if USB or old phones) is just a power supply and is not suitable for charging batteries without an external charging controller.

Nonsense. See how the chargers for even cheap screwdrivers are built. And the charger for charging the batteries? Are you saying that there must be a charge controller in each? It can't be done otherwise? Strange fashion has now come. Controllers, processors, arduino are pushed to everything, whether it is necessary or not. Soon, you can't drain the water in the toilet. And what will be? Big stench, because no one can do without fancy electronics, and hardly anyone will know simple solutions.

Although you don't actually need any processors for the alkaline batteries mentioned here, you need a regular power source. After all, these batteries are charged with "electricity".

You can also use the very good U2400B scalac. I made very nice chargers on it. It is a system that controls, discharges and charges Ni-Cd, Ni-MH batteries automatically.

/ Wawrzyniec /

This charger is old, just with a large plug, the tip is not for usb. It has a tiny mass / plus pin.

Unfortunately, one battery holds electricity, the other does not.
The easiest and cheapest way is to put baskets for AA batteries for toys. Since I have several of them and a decent charger, it will probably be the best solution.
Purchase of 2 chargers around PLN 40, new batteries around PLN 70 - not worth it.
A set of tanks cost about PLN 180.

And this is probably the best solution - the cheapest (because without financial), and the tank will travel longer because AA batteries have a little more capacity than the poor 400mAh.

Another question:
Can I put batteries of different capacities in one basket?
(2 x 1300 Ma, 2 x 700 mA)

Unfortunately, you can't combine batteries like this.
Batteries working in series should be of the same capacity and preferably of the same manufacturer.

Thanks to everyone for the advice.