Watts Help Needed.
I am trying to figure out how long a battery will last. I have Googled it and read a few sites but I still have a few questions. I have a small TV that I plugged into my Kill a Watt meter. That sho...
Forum Discussion
your charge WON'T USE 25 amps, it might charge at 25 amps at 14v = 310 watts
25 amps 'use' times 120v would be 3000 watts
amps will 'ALWAYS' taper down
a charger doing 30amps at 14v will still taper to 1amp at 14v when the battery is near full
battery capacity & ability to accept the charge determines the amps at 'ANY' voltage
a partially used battery has a lower internal resistance than a charged battery
as the battery charges, the resistance to accept charge also increases
the battery controls the amount of charge it accepts, not the charger
automatic 'car' battery chargers, turn OFF, when the battery acceptance slows down
they shut off before the battery is fully charged
i know this is a lot to learn,
BUT learning to understand the 'terms' correctly, and correctly charging your battery, will save you money and future problems and expenses
25 amps 'use' times 120v would be 3000 watts
amps will 'ALWAYS' taper down
a charger doing 30amps at 14v will still taper to 1amp at 14v when the battery is near full
battery capacity & ability to accept the charge determines the amps at 'ANY' voltage
a partially used battery has a lower internal resistance than a charged battery
as the battery charges, the resistance to accept charge also increases
the battery controls the amount of charge it accepts, not the charger
automatic 'car' battery chargers, turn OFF, when the battery acceptance slows down
they shut off before the battery is fully charged
i know this is a lot to learn,
BUT learning to understand the 'terms' correctly, and correctly charging your battery, will save you money and future problems and expenses
