CB testing this coming week

[Easy rider]

I think your radio is the Midland porta pack 77 805, if you Google midland portapack 77-805d low power out charlie tango dx. It will link you to a question on output. Given in the posts following I'd a pdf download user manual which will help some if it's the radio I suspect.

I have never owned one but a mate did back in the day.

In my units I use varta high energy AA for high drain devices recommended

In the battery compartment if any acid leak on connections springs so on can be removed simply with white vinegar on cotton ear buds it just dissolves it.
Ensure connections are. spotless same with antennas connections .

Ensure antenna is connected before any use and when your transmitting it must be fully extended or you risk blowing tx output.

I know one of the variants with the channel 9 digit printed on front case can be fitted easily with the mid block board expanding channels to 80 total 40 eu and 40 uk handy .

I know it has some sort of power shut down when battery low but not sure what how it effects.

If it's working treat it well ,oil antenna .it's a decent comm ,versatile as it will run off batterys, 12v dc plug in car ,can plug external antenna too magmount or home based even home brew wire like inverted v .
Good find ,great price. Enjoy.