The photo looks like a repeater supply. Many repeater supplies provided a 9.6v DC low current output for the receiver and exciter, some had a second low current output at 13.5-13.8vDC at 3-4 amps for the other audio stages, and most had an unregulated (as high as 16v) high current output for the transmitter RF amplifier section.
The 16vDC is not suitable for high current loads that expect 12-14 volts. You will cook / boil your batteries. The 25-series number is for the power transformer only. Motorola parts department always formatted their part numbers with a 2-digit prefix to identify the type of part. See <http://www.repeater-builder.com/motorola/numerical-parts-categories.html> TB602 is a label for a connector that goes to somewhere else in the radio cabinet. It probably has the 9.6 or 12v low current, or ? Some supplies had a battery charger circuit in them. Some had a battery backup section (i.e. an automatic load switchover from the mains supply to the battery bank. Please look for a rubber stamped number somewhere on the chassis that starts with TPN, followed by 4 digits and maybe a suffix with some letters and numbers after it - something like TPN1095A, or TPN1152B1, or something in that format. USUALLY, but not always, there is a letter after the 4 digits, occasionally there is a number after the letter, and rarely there is a number at the end. There is no way to tell exactly what voltages, or features your supply has in it without seeing the actual physical supply, or looking at the manual. If you provide the complete TPN number we can look it up to see what type of station (radio) it came from, then look at the manual for that station. BTW the TPN comes from: T = Two way radio product P = Power supply, or power supply related N = Not frequency sensitive . The last letter usually was structured like this: A Under 25 MHz B 25-54 MHz C 66-88MHz D 144-174 MHz E 390-550 MHz F 890-960 MHz N Not frequency dependent See <http://www.repeater-builder.com/motorola/aaannnn-numbering-scheme.html> Mike Morris WA6ILQ
