Can you connect 8 AA 1.5V battery so that it produces 12V?
Answers: Yes, putting eight AA battery end to winding up (each + to - with the next) will create a 12V supply. (FYI - putting them within parallel; all + connected and adjectives - connected together; will create a battery of 1.5V beside 8 times the current capacity.)
No doubt this radio is intended to be installed within a car where on earth the "12V switched" wire is connected to 12V "ignition" and the "12V backup" is connected to 12V constant "battery". There are two possible problems depending on how the internal circuitry of the radio is designed:
One is that the radio may draw extramural power from the "12V backup" wire that you would be connecting to the AA battery and may actually drain them when the vehicle is running or the radio is on. Check if the voltage on the batteries drops when the coup¨¦ is running or the radio is turned on.
The other is that the "12V backup" wire may internally connect to the 12v supply from the sports car when it is running or the radio on. A car alternator puts out in the region of 14.5v when the car is running and would charge (overcharge) them. Check if the voltage on your battery exceeds their unconnected voltage when the saloon is running or radio on.
Good luck
I don't know about charging the battery, but you can put them in series or contained by parallel to create a 12V source.
FYI: series means they are adjectives connected end to back, parallel means they are subsequent to each other.
Series: --------
Parallel: ||||||||
yes, contained by never never land
8 AA battery connected in series (end to termination, plus to minus) will give a 12v supply. If this is a short time ago for backing up the memory afterwards his should be fine, but I suspect that they will not last highly long if you intend to power the radio with the nouns on etc. with them.
As for recharge the batteries you will necessitate some sort of charging circuit in command to do this safely, otherwise you run the risk of overcharging the battery and either unsafe them or in the worst grip, causing a fire. I ruminate that in vehicle chargers are available for AA batteries, you could try an on-line electronics store resembling CPC in the UK or Radio Shack surrounded by the US.
Don't bother, they make a 9 volt adapter to do newly this and you could charge it in a standard charger if you buy a rechargable, this is available at most auto parts stores.
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