Charging the 14.4V screwdriver with an automatic charger from a ladybug

Hi, I recently bought a screwdriver with a battery but without a charger, and I wonder if it would not be possible to charge it with an automatic charger from the ladybug, as the photo below the charger currently exceeds the price I paid with the screwdriver in the future I thought I would make to links 1860.

pablolinda wrote:

I wonder if it would be possible to charge it with an automatic rectifier from a ladybug

The charger is for acid batteries and not Ni-Cd / lipo. At best, the charger will not start charging, as you will have bad luck, it will end with a fire

I understand everything, but I have plugged in and loaded up so far.

pablolinda wrote:

I have connected and loaded the test

You charge, but you should control the current and voltage. If you do not do it you will damage the battery sooner or later.

So as you can see the meter is connected, I still have to connect the second one as you say to measure the current, and secondly it is a microprocessor rectifier, so it should control these parameters and as for the above

szymon122 wrote:

The charger is for acid batteries and not Ni-Cd / lipo.

I do not think that the rectifier has the meaning whether it is an acidic battery or low if it has a similar voltage and it is not lipo that it was equipped with a balancer only from what you see after disassembling the batteries are the links connected in series without any electronics so probably the original charger it controls only the voltage and current of the whole battery as a whole and not of individual cells and when it reaches the set values it switches off the charging.

Moderated By trymer01:

A colleague is wrong and hen andron!
If a colleague knows better - why this topic?

pablolinda wrote:

I do not think it matters to the charger whether it is an acid or low battery if it has similar voltages

If you think you know better ...

398216 Usunięty wrote:

pablolinda wrote:

I do not think it matters to the charger whether it is an acid or low battery if it has similar voltages

If you think you know better ...

I do not think I know better, but logical thinking is the result of the charger treats the battery as one whole link and does not divide them into individual packages like in a laptop battery, e.g.

pablolinda wrote:

the charger treats the battery as one whole link

Yes, you are right, but what if the battery is different? Requires different charging current, other protection?

brofran wrote:

you should control the current and voltage. If you do not do it you will damage the battery sooner or later.

- and very quickly ...

As for the charging itself - you recharge it and the charger. Just as your colleagues wrote - not only that a dangerous operation (explosion of batteries) is not very economical, because you are charging them with a higher current than you should, so the lifespan will end before the time. Another thing is the battery life. Oh ... and the memory effect of NiCd batteries. It's as if you were trying to get rid of spirit and instead of being able to get a bite, he wanted to drink right away.
If you do not look at it - combine a charger with a current limit to 1/10 of what can be drained from the battery for an hour. For example, you can load 100mA for 10 hours.
This is a very rough simplification, and read more.

For now, I figured out the charger so I got it from a colleague because he does not use it because he got hit and he turned his screwdriver into a car battery.
I had to plug in because there is another socket and I just do not know if the parameters are not correct and I was surprised that 15V was written on the housing and when I measured it, the 20V charger comes out.

20V on the meter without load. Check under load. I do not know what parameters this charger has (it's about electricity), but it's better than the charger for acid acrylators.

@pablolinda You heard the bell, but you do not know where he is.
Yes, the voltages may be similar, but the chemistry of cells and their capacities, and hence, the charging currents are completely different.
Batteries are usually charged with a voltage higher than the nominal voltage - you use a 12 V battery charger, in the microprocessor add-on, you try to charge the battery with a nominal voltage of 14.4 V. This charger, based on a reading from the battery (voltage changes, etc.) tries to read its state. An efficient car battery, fully charged, has a voltage of ~ 13 V, which usually stabilizes at 12.6 V, so this charger after reading the voltage does not recharge the battery from the screwdriver, because it needs higher voltage to accept the charge. What's more, these chargers do not charge with constant voltage, only it changes - once it can be 13.6 V, in a moment 14.4 V, to drop to 12.8 V, but usually it does not exceed 14.4 V (safe limit of gassing of electrolyte in acid batteries).
The more important issue, however, is that with a charger designed for large capacities (from about 10 to 100 Ah) you try to charge a battery whose capacity will fluctuate around 1.5-2 Ah. The battery capacity is related to the permissible charging current - this is usually 1/10 of the cell's capacity, so in your case approx. 100 - 150 mA will be recommended, while the charger you own has minimum electricity at 800mA (maximum is 3800mA, or 3.8A), so far too much. A rechargeable battery charged with such a current can explode, and at best very quickly end its life.
This is also the case with the chemistry of cells, that is, their composition, structure and chemical changes resulting from it, and hence, other charging characteristics. To explain it simply, compare it to the differences in petrol and diesel - both of them are fuel, for internal combustion engines, but the flooding of ON petrol will not bring anything good .
The second charger you have has a higher voltage to be able to "push" the battery charge. Unloaded voltage will be high, because it is a simple system without any control electronics, after connecting the package will probably stabilize at 15 V. The charger of the "fast" type - max. 1A of charging current, so-called "1-hour", which quickly loads and compacts the batteries as quickly .