A car battery has a stronger pH compared to lemon juice. Lemon juice typically has a pH around 2, which is acidic, while a car battery has a very low pH due to the strong sulfuric acid electrolyte it contains.
You can't. You have what you have. Buy a larger CCA battery if you want more power.
Jump the car from another car battery or hook a charger to the battery.
You can get a new battery, you can jump start the car with jumper cables and another car with a charged battery. You can also put a battery charger on your battery to give it a charge.
If the battery has more cranking amps than the recommended battery and will fit into the battery carrier box the answer is yes.
Is there power to the starter "S" terminal? What car?
Disconnect negative cable first from old battery and connect it last when installing new battery.
yes
No
Yes
No, it will do nothing
The most common problem from what I can tell is battery failure. This car needs a much stronger battery than a normal car, and they are still working out the technical side of this.