DIY

We charge the battery from the welder and the boiler

We charge the battery from the welder and the boiler

Anything can happen in life, suddenly your battery runs out, and you or a neighbor have a welding inverter available.
A DC inverter is well suited, for an AC welder you need at least one diode, but it is better to twist a rectifier bridge.
 We charge the battery from the welder and the boiler This way I regularly charge the battery, no problem. To select the correct resistor, you need to know the open circuit voltage of the welding machine, I have it 65-64V.
For my welding machine, a 1.5 kW boiler is suitable as a resistor, when connected in series, the current receives no more than 1.15A, which is enough for humane charging of a battery, especially a deeply discharged one.
You can also use an electric kettle, an electric stove and other devices with a heating element such as Heating element and not only.
The boiler hardly heats up, but just in case I put it into the water anyway. The higher the power of the device, the higher the current of the improvised charger will be.
How to calculate amperage I = P/U
P is the power (W, kW), and U is the voltage.
For example, with a boiler I = 1500/220 = 6.8A (this is when powered by 220V !!!)
And since our voltage is not 220V, but 65V, this means that the current will be less than 4 times less. Even if the idle speed of the welding machine is 110V, the current will be only ~ 3.4A, which is not much for charging a battery with a capacity of more than 50Ah.
Be sure to use a fuse that will protect against erroneous voltage supply directly from the inverter to the battery !!! I have a couple of strands of stranded wire.
Not a call to action, you don't know and you are afraid – don't.  We charge the battery from the welder and the boiler

Source:

usamodelkina.ru

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