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Every rechargeable battery has a certain cycles of charging and discharging the battery. Not two batteries have the same life time. The amount of cycles a battery can have, can be influenced by the user. If you leave a battery without charging or discharging for months or even years, the lifetime can be shortened. That is why most of the time you get warranty on the equipment, but almost never on a battery. (sometimes a warranty of 90 days is given on a battery.)
Still when a battery won't charge, you could check all the parts in the chain. The AC / DC power convertor / charger the power cable.
When the light on the charger comes on, you can assume the charger is working.
If you can charge the battery in the camera everything looks the same. As soon as the green light comes on (starts to flash slow) you can assume the AC adopter is working. The charging of a fully discharged battery should take about 4 hours.
I have two Kodak Li/ion batteries and after almost 10 years, they are still on good condition. But I also had to trow away lots of other batteries, before they were about one year of age. (I did charge them wrong, with a high current, more then they could handle)
engine running or not,,??????
or dead charging system.
rusty battery terminals.
check battery voltage parked key in pocket, see 12.65vdc.
if lower , on a warm day the battery is discharged
or at 30F it must be.12.58vdc, rested, if not the battery is discharged
or battery is bad.
if discharged , then charge it.
and fix the bad charging system.
ok you jump start car.
and the battery voltage is 13.3 to 15vdc, if not the charge system is failing, or engine RPM below 800.
if running voltage is below 13.3v the charge system is failing running.
Yes this can be a normal condition caused by load being applied to the headlights and that lowers the voltage, the lites dim, then the load is removed and the lights brighten. Typical loads that cause this are AC climate control related. Have the Alternator load tested to confirm there is no problem in the charging system. Also have the battery tested, a battery that is starting to fail can cause this problem as well, a failing battery takes a huge amount of charging system power to keep it up, so that makes the lighting see higher spikes in voltage
Your alternator may be going bad. Once the car is running, your battery has done its job and the alternator takes over. The alternator is responsible for firing the plugs, running your lights, your radio, your heater/AC, and anything else electrical, as well as keeping your battery charged. If the alternator is on its way out (or even has a less than good ground), you may experience some lights dimming, or even choppy radio signal. If the alternator is already gone, and your car is running off of the battery full time, you will also get the dimming you describe, and sooner or later the car will not even start. Take your car to an auto parts store (Advance, or Auto Zone, etc) and ask them to test your alternator. This is a free service.
Well hope so you didn't damaged the sensors! try this : use the phone until battery is empty and switches off. then put it on the charger for 4 hours. If no joy,try different battery to make sure that device is not damaged and get a new battery.
Connect the supplied AC/DC adapter/charger to the 5V DC jack on your
hdd and the power supply. The AC power icon will indicate on display
showing that the Jukebox is now adapter operated. It takes 4 hours to
fully recharge the hdd and once the battery is recharged fully, the
jukebox can play up to 10 hours of music on the move
Simply plug the ac adapter into the wall, the laptop will charge the battery itself.
Keep in mind this... in general, a laptop runs at full speed when it is plugged into the wall. When most laptops are running on battery, things are running more at 50% capacity to save on power, this giving you more battery life. A dimmer lcd and slowing the processor down when not needed are common traits.
You can use the FN key (function key) and the corresponding dim control on the keyboard to adjust the brightnedd of the backlight. It should be marked on your keyboard in a different color, like blue or maybe green (not familiar with that models keyboard).