Hello, i have 07 Honda Civic ex coupe. The battery is new(fully charger) and the alternator is good, also it has a remote starter, but the car acts if it has no battery power. This is the 3rd time this happens. Let me run down what happens....i put the key in ignition and turn to accessories. it sometimes, it will light up all the lights on the cluster like it should normally. As i turn the key to turn the engine, it completely dieds. all the lights on cluster turn-off as if the battery has no power and nothing happens. It sounds like a click. Now after this happens, i plug a battery pack jumper to the battery and start the car up with no problems. NOW as im driving the car, the radio turns off and back on randomly. This happens as i noticed when something on the vehicle is being turned on. Like headlight, AC clutch, turn signal, and sometimes accelerating fast. This things happen in a randomly period of time of each other. i can be driving and letting the car run for an hour or so. I turn the car off not taking the key off the ignition. I go turn the ignition on and something happens.

Im i dont know what it can be, the ECU or some relay on the fuse box. Does anyone know and can help me on this issue?

when key is in ignition

when ignition is on all the way to turn the engine on