The transformer is 11.2v after rectified! Sorry that I did not say that detail!A transformer rated at 11.2VAC rms under load will output over 15.5V when rectified. Output voltage with no load will be even higher.
I think 5A output is not enough to charge a car battery. I have to check this.
To be honest I am not sure if the transformer is more than 5A,because i don't have such a load do measure the maximum of the transformer!You will need about 14.2 volts to Charge a car battery, 13.8 to keep it in a float condition.
You can use a Boost convertor to raise the voltages, but your current capacity will reduce. 11.2@ 5A = 56 Watts. A convertor with 85% efficiency will bring it down to about 47 watts, and at 14.2 volts the current will be around 3.3 amps.
A dead battery will get some life on a overnight charge at this current, but not likely to be charged to full capacity.
You can make a 13.8 volts float charger to maintain the battery in a charged condition.
The wire gauge is 1.1mmhi M,
This DC Booster s one option,
E
Do you have a photo of the TXR or know its weight , check the wire gauge on the 11v secondary.
https://www.ebay.co.uk/itm/400708515657?hash=item5d4c16b749:g:-aIAAOSw8KRca9hp
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The output voltage is 12v before rectifiedWhat is the transformer core area?
How many output voltages does it have?
It can charge a car battery.The voltage output is good for a battery charger...but not enough current for a car battery.
hi.The transformer is 11.2v after rectified! Sorry that I did not say that detail!
This is true, but if you set that supply up as a brute force charger (Transformer, bridge and cap) and connected it to a discharged car battery...I would be worried.It can charge a car battery.
It will just take longer.
Worried about what?This is true, but if you set that supply up as a brute force charger (Transformer, bridge and cap) and connected it to a discharged car battery...I would be worried.
OK, here is the solution which will provide some battery charging current. Use a full wave voltage doubler circuit! That will give you about 22 volts no load but it will drop quite a bit with a load. But it will charge the battery, just not in a hurry.To be honest I am not sure if the transformer is more than 5A,because i don't have such a load do measure the maximum of the transformer!