Something about mobile phone charger!
Something about mobile phone charger!
Principles of mobile phone charger
Mobile phone charger actually made a stable power supply (mainly power supply, to provide a stable operating voltage and current) with the necessary constant current, limited pressure, limit and other control circuit.
Original Charger (refers to line charge) mark on the output parameters: such as the output 4.4V/1A, output 5.9V/400mA … … refers to the internal power supply of the relevant parameters. Understand this truth, you are will know a (good quality) apple a1175 battery charger is easy to change a good quality power supply! Such as the output of 4.4V to 4.5V device can be used, 5.9V to 6V devices can be used … …
Commonly used in lithium-ion cell phone battery charger which different from the Dell latitude d620 battery charger uses constant current charging pressure limiting system, the charge current is about the general use of C2 —- that is using the two-hour charge rate, such as the 500mah battery charging about two hours using 250ma to 4. 2V and then constant voltage charge.
Lion batteries are not suitable for high speed charger detection used -DV/DT fast charge mode of apple a1189 batteries, because the lion battery charge current, there are strict limits. lithium-ion (Li +) is very lively, high-current charge is easy to be dangerous.
Have access to the most famous lion-ion batteries manufacturers of technical staff, according to their destructive test report provided by: The normal circumstances lion battery (batteries) in the discharge (including short-circuit) are generally not an explosion, but may overheat and burn, but in the more serious charge over-current situation, it is very easy to explode!
note
As the market of varying quality, it is easy to make battery scrap, so if you want to buy a best Apple powerbook g4 battery charger, you must select a best brand.