Mon Prof Augmenté
Rechargeable cell in use and on charge
Age 16 · Daily Life
A rechargeable cell stores chemical energy and releases it as electrical energy when it powers a device. Plugged into a charger, the same reaction runs backwards, so the original substances build up again and the cell is ready to use.
This picture is part of the full library
Every lesson is open to everyone for 7 days after it is published. This one came out on October 8, 2026: its text stays readable here, and its picture opens with a subscription.
The app is free. A subscription opens every lesson, in every school year.
Age 16: open this week
Browse Age 16
In the picture
- The cell in the holder: its stored substances reacting and pushing current out through the wires
- The glowing filament: electrical energy leaving the circuit as light and heat
- The plug at the wall socket: electrical energy arriving from the mains supply
- The charging contact strip: current pushed in, driving the reaction backwards inside the cell
Examples
- A phone that runs for hours on one charge, then spends an hour on the charger.
- A rechargeable AA cell in a wireless mouse, refilled afterwards in a wall charger.
Key takeaways
- Discharging: chemical energy changes into electrical energy.
- Charging: electrical energy turns back into chemical energy and restores the original substances.
Quiz: Rechargeable cell in use and on charge (Age 16)
-
During discharging, what energy change takes place in a rechargeable cell?
-
What happens inside a rechargeable cell while it is being charged?
-
What does the current from the charger do inside the cell?
The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.
Free app, optional subscription
App Store Google Play
Carry on in the app
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
Your child’s teacher does not use My Enhanced Teacher yet?
Tell them about it
