It will still charge with a defective logic board.
It has to do with your battery charge. it's either charging or is at full charge.
Boost charging involves a high current for short period of time to charge the battery. It is generally if the battery has been discharged heavily. Boost charge enables the quick charging of depleted batteries.
reset battery no charge light after battery replacement.
The battery is probably dead.
How long should I leave a battery on charge
You simply cannot as it is THE battery that you are charging...
No, the charge in the battery is a change in state of the battery contents, not an addition to the battery.
Rechargeable batteries are generally stored and shipped with no charge. This allows for a longer battery life. Fully charging the battery the first time will give you the best results for maximum charge and battery life.
Can You Charge...Yes. As a matter of fact, in order to charge a battery, the charging voltage HAS to be greater than the charged battery's voltage or no current will flow and charging cannot happen.Of course, the charging voltage cannot be excessive, or damage to the battery being charged will result.In your question, 4.6 volts is not excessive for a 4.2 volt battery.
Charging at 2 amps describes how fast it is charging. The amount of charge is the current times the time, so after 5hours at 2 amps it has taken a charge of 10 amp-hours.
Yes. Top up battery with clean water after charging only. Never top it up before beginning a charge.
You would have to know the voltages of the battery and the UPS to know for sure. For example if the UPS' output is 120 volts, then it is capable of 5 amps of output. If the battery is also 120 volts, then it would take the UPS 29 hours to fully charge the battery. However if the battery was rated at 220 volts, then the UPS would never completely charge the battery. The source of the charging voltage must exceed the battery's voltage in order to fully charge it.