400 Watt 9-15 Volts DC 36 Amp HAM CB Power Supply 12 Volt 40A Real MegaWatt®
Mar 12, 2018
The best battery elimiantor power supply that I have found.
I was in need of a 12 volt car battery eliminator.
I first tried a well known Battery Charger brand sold on Ebay.
The Battery Charger was tested and proved unstable and inconsistant in voltage output with load.
I then found this power supply.
It is superior to even a 12 volt car battery for our application.
Testing at a voltage set to 12.2 Volts, currents from 2.5 amps to 12 amps were drawn.
The voltage output stayed constant at 12.2 volts regardless of load amperage.
It has a quiet cooling fan that runs as needed and produces a well regulated output in a small package.
I highly recommend this supply.
5 Stars * * * * *
Bought a rebuilt alternator and the idiot light was still ON. Rather than returning it and getting another I took this one apart and tested the Tree diode and it was good, then checked the 6 diodes in the bridge and 1 was bad. Bought this bridge and installed, now alternator works great.
Work with Arduino DS1307 I2C RTC DS1307 24C32 Real Time Clock Module for Arduino
Feb 04, 2018
Do Not Buy
These RTC do not work.
You can search the web for the Arduino Forum and see many responses.
I tried several of the suggested modification.
The problem is, once the 5V is disconnected, the time keeping is not kept alive by the coin cell.
Then search for the DS3231 as an improved RTC.