Can a 12 volt 800 mAh adapter replace a 12 volt 1 5 amp?

This can't be replaced, it's best to find a power output 12 volt 20 30 watt power transformer, and then go through bridge rectification, filtering, and that's it. Rectifier diode model 1N5401 8 series is fine. The circuit diagram is as follows:

Can a 12 volt 800 mA adapter replace a 12 volt ampere? This depends on how much current your appliance needs to be, if it does not exceed 800 mAh, it can be replaced. If the current is exceeded, it cannot be used, and the adapter will burn out if used.

This can not be judged from the output of the adapter alone, it can be determined according to the power consumption of the appliance, you can check what the maximum current on the appliance is, this is usually marked on the appliance. If the maximum current is less than 800 mA, it can be used instead, and if the maximum current is greater than 800 mA, it cannot be replaced.

As long as it doesn't break the 100 milliampere adapter can replace the 12 amps, this can be, but with the original,

Well, if you get under the 12-volt 800 mAh adapter, you can be 12 to serve 520,000 electricity, this is no problem at all, and the charging speed is relatively fast.

These two models of adapters can be completely replaced, as long as the voltage is equal and the current is a little higher, it doesn't matter.

The 12 volt 800 mA adapter is not a substitute for a 12 volt ampere. Because the rated current is too small, it is very easy to burn out.

No! The discharge termination voltage of the 12 volt battery is volt, at this time you use the 12 power adapter, the current will be greater than the output capacity of the adapter, and the adapter will burn out!

2. The charging termination voltage of the 12 volt battery is about 14 volts. A 12-volt adapter obviously can't be charged to 14-volt.

Secondly, the battery must be charged in the charging tube. One is to limit the charging current, and the other is to turn off the charging when it is fully charged. Manual management, once wrong, may destroy the battery or charger.

The output voltage of the power adapter must be the same as the voltage of the charging bottle. Preferably if the specifications of the two match exactly.

How can there be such a data as "1670mA"? If this is the case, it is possible to charge a 12-volt 20VA battery. However, it seems that the charging speed will be slower.

Can you see what the maximum output voltage is, the maximum output volt is not good, 14 to 15 volts can be charged, and the current is okay.