Power Battery Charger

Power Battery Charger
a. What is the power the charger delivers? b. How much energy does it supply to the battery during the 1.5 hrs

A battery charger is connected to a “dead” battery and causes 4.4 A of current to flow through the battery for 1.5 hours. It maintains a potential difference of 1.5 V across the terminals of the battery.

A battery is essentially an electrochemical capacitor, so hook up a circuit and put a capacitor in there with those specs.

Charge:
I = ΔQ/Δt
4.4 Amperes = 4.4 Coulombs/second = ΔQ Coulombs / (1.5 hours * 60 minutes/hour * 60 seconds/minute) = ΔQ / 5400
4.4 = ΔQ / 5400
ΔQ = 4.4*5400
ΔQ = 23760 Coulombs

Power:
P = IV
P = 4.4 Amperes * 1.5 Volts
P = 6.6 Watts

Amorphous Solar Power Battery Charger Kit by Harbor Freight 1.5 watt Review driverstorer.com