2007-06-18 08:03:10 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Battery indicators are based on the measured open-circuit voltage, which is a very inaccurate way of measuring how much energy a battery has left.
For example, a battery can have a large internal resistance, which makes it almost useless, but still have a high open-circuit voltage which makes it look like it's still really good.
2007-06-18 08:33:06 · answer #1 · answered by mikeburns55 5 · 0⤊ 0⤋
Because those indicators are not 100% accurate. What you are seeing is a bad reading, the battery probably was half empty to start with.
2007-06-18 08:13:18 · answer #2 · answered by Pfo 7 · 0⤊ 0⤋
The indicator is reading what is known as surface voltage but since the battery is depleted there is no current to maintain the reading.
2007-06-22 05:04:01 · answer #3 · answered by johnandeileen2000 7 · 0⤊ 0⤋
Asked and answered yesterday.
2007-06-18 08:24:23 · answer #4 · answered by Anonymous · 0⤊ 0⤋