Most good battery chargers are automatic and will stop charging when the battery is fully charged. But if the charger is a manual charger it can overcharge the battery. With this type charger it is up to you to remove the charger when the battery is fully charged. Normally this is based on the amount of time the charger takes to charge the battery pack. Operators manual will list the time.
Most definitely you can ruin it. Always charge an auto battery with an automatic charger that shuts down when the battery if fully charged.
there is a sensor on the back of the battery sleeve that wraps around the battery. it takes the temp of the battery to check for low or over charging.
One thing you have to be careful about with AEG's is how long you charge your battery. I don't know the answer but I am going to suggest a basic smart charger that will stop charging the battery once it is at max. A basic Smart Charger goes for about $20 but it is better than over charging a battery and breaking it.
Charging or over-charging
Battery chargers generally operate at the same voltage as the voltage as the battery they are charging. They usually vary the amperage they feed into the battery to recharge it. A trickle charger usually only feeds a few amps into a battery to recharge it slowly over time. A fast charger feeds more amps for less time to bring the battery to full charge faster. Automotive alternators are the only charging systems that I am familiar with that generate more voltage than the battery they are charging. That's because they have to run the car AND recharge the battery at the same time. Car alternators can vary their amperage and voltage outputs to allow for the varying demands of the car and all of it's electrical devices and recharge the battery as needed.
The alternator is over charging. you need to have the charging sytem checked.
The charging system may be over charging the battery. Over charging the battery can speed up the evaporation process. Have the electrical system tested.
It takes about 6 hours to charge a 7.4 volt battery when using a 5 volt charge. For the best results try charging it over night.
Batteries and chargers are matched to each other. You cannot arbitrarily choose a different battery or charger without running the risk of over or under charging, particularly with NiCad batteries, but also for any battery. Best is to consult the manufacturer and pick an exact replacement, or an authoirzed substitute.
battery will make a gurgling sound when being charged while being charged, the acid(liquid) in battery heats up. u should not hear this in normal conditions in a vehicle should only hear it when on a battery charger check that sides of battery are not bulging.this is a sign that the battery is about worn out and is over charging, have battery, alternator and coplete charging system checked. batteries give off a gas when charging if overcharging, this gas is highly explosive and any small spark can ignite it
In almost all cases the answers NO. All chargers have a safety cut off, where the battery is fully charged, or the amps are the same in the battery as the charger, the charger wil shut off to prevent over-charging and damage to your battery. touching the 2 ends ( + & - terminals) together will simply give you a pretty spark, and reset the charger. depending on wot kind of charger u have, it may take time to reset automatically, or u may have to push a "reset" button, worst case is u may have to open the charger and replace the fuse inside.....
Yes, overcharging the battery will ruin it.