That varies with battery chemistry.
There are mainly three types of charging processes: slow charging, fast charging, and wireless charging. Slow charging is the traditional method that takes longer to fully charge a device. Fast charging uses higher power levels to charge devices more quickly. Wireless charging allows for cord-free charging by using electromagnetic fields to transfer power to the device.
The different charging processes include constant-current charging, constant-voltage charging, and trickle charging. Constant-current charging delivers a consistent current to the battery until a certain voltage is reached, then switches to constant-voltage charging to prevent overcharging. Trickle charging is a slow, low-level charge that helps maintain a battery's full capacity over time.
battery weak or alternater is not charging battery. a fully charged battery should read at least 14.5 volts running if alternater is charging.with engine off the battery should read about 13 volts,
The battery problem statement typically refers to an issue with a battery, such as reduced capacity, slow charging, or unexpected drain. It can also involve identifying the root cause of the problem and potential solutions to improve battery performance.
To find our what charging ampere to use a simple way is to divide the battery Ampere with its ampere hour (i.e. for car batteries they will say 75ah C/20) this means that the battery has 75 ampere rating based on 20 hour rating... as such to find the charging ampere divide 75 by 20 to get a charging ampere of 3.75... this is for a slow charge - to speed up the charge divide the ampere by 5 hours (to charge the battery from empty to full in 5 hours)...
Not significantly. So long as it is done using a properly designed smart charger, most NiMH batteries can be recharged in about an hour without any damage or significant reduction in their life. However, NiMH batteries must only be rapid charged with a charger specifically designed for charging NiMH batteries. Chargers designed to rapidly charge NiCd batteries can overcharge NiMH batteries. While it may be true that rapid charging NiMH batteries can reduce battery life by a small amount (probably less than 10%), this should be more than offset by the inconvenience of always slow charging batteries.
not a fast but slow
slow-fast-slow (Apex)
Leave the laptop off. Allow the AC power adapter to fully charge the battery for 12 hours. During this time, do not use the laptop or turn it on. This can slow down the charging of the battery.www.laptoptown.com
Not sure if the question is what to charge the battery with or how to charge the battery. So, I will address both: A regular battery charger can be used. IF you are going to purchase one, you really don't need a top-of-the-line, expensive charger. A simple 2 to 6 amp slow-trickle charger will do the job. To charge the battery, connect the red charger cable to the positive battery post and the black charger cable to the negative battery post, then turn on the charger until the battery is charged. If necessary, clean the battery posts and cables before charging. The battery charger will have more complete details for charging the battery.
fast and slow
slow