Yes.
About 1.5 volts.
This is an alkaline battery and will have a typical terminal voltage of 1.5v.
Perhaps it would be possible to replace an alkaline battery with a lead acid battery of the same voltage and current capacity. BUT the construction, size, and chemistry of the two types are totally different.
Your 2004 Chevrolet trail blazer and battery light indicator is always on because the battery has sufficient charge.
NiMH batteries must be charged first. The charge won't last as long as an alkaline battery but they can be recharged 100's of times. They have a slightly lower voltage (1.2 instead of 1.5) and should work fine in many devices. For an electronic device, you may see a low battery indicator because of the lower voltage.
Red means that the battery charge level is low or that the alternator is not charging battery properly. Check alternator, voltage regulator, connectors.
The charge light responds to the battery voltage. When the battery is NOT being charged, the battery voltage is a pretty good indicator of the charge state, although temperature will change the voltage a bit. When charging occurs, the voltage jumps up for several reasons. First, the charging reaction itself. Chemicals are being changed. Second, internal battery resistance. The older and the more use, the higher the resistance will be. Third, terminal resistance. There may be corrosion between the terminal and the attaching connector. The charging current goes through these resistances and raises the apparent voltage. These voltage increases fake out the indicator. The voltage under charge is higher than it should be, saying, "I'm all charged". To bypass all of this, turn the car off and measure the voltage right at the battery terminals, with no current flowing.
No, the voltage is determined by the technology of the cell: Ni-Cad 1.2 v Alkaline 1.5 v Zinc chloride 1.6v Lithium 3 v
The "non-alkaline" battery is probably best "defined" by comparing it to the alkaline battery. Both are chemical cells, but the alkaline battery has as an electrolyte a basic solution of potassium hydroxide. (A base is often said to be "alkaline" in chemistry.) The "non-alkaline" battery uses zinc and ammonium chloride, which are acidic, as an electrolyte. The alkaline battery packs a higher chemical energy density than the "regular" or, as it is marketed, "heavy duty" or "industrial" battery. That's why it is generally more expensive and lasts longer. Use the links below to learn more.
It used mostly for high voltage using devices. It lasts longer than a normal alkaline battery and is often used in a camera or other high drain devices.
The charger can test the % left in the battery and the voltage remaining. It can also test a car's alternator.
The different chemistries makes a different voltage. The alkaline is 1.5 volts and the NiCad is 1.2 when fully charged. If it will work with the lower voltage then it may only assume that the battery is low. But when the NiCad actually gets low then the device may not work properly.