Wouldn't this solve the world energy crisis?

You may want to take a look at this - the idea may work for developing countries. http://www.smithsonianmag.com/innovation/a-potato-battery-can-light-up-a-room-for-over-a-month-180948260/?no-ist

How long does it run on the potatoes?

We had it for about a week and it ran strong. The potatoes started to look bad so we threw the whole thing out. I imagine it would run the clock until the potato went completely bad.

Followed directions about setting time, but didn't work. Any hints?

Here are the instructions for setting the clock. These are provided with the kit as well. SETTING THE CLOCK 1. Setting the clock When all the metal plates are first inserted into the potatoes, the LED screen will light up and will show a static display of "12:00". Press A once, the clock will start working. You will see the two dots in the middle start flashing. Press B twice to obtain the set month mode, then press A to adjust to the right month. Press B to confirm and the display will switch to the set day mode. Press A to adjust to the right day. Press B to confirm and switch to the set hour mode. Press A to adjust to the right hour. Press B to confirm and switch to the set minute mode. Press A to adjust to the right minute and press B to confirm. After the minute is confirmed, press A once. The set time will be displayed. 2. Viewing the clock By default, the clock display shows the current time. To view the Date: Press A once. The clock display will resume showing the current time after 2 seconds. To view the seconds, press A twice. To resume the current time, press A again.

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4M Green Science Potato Clock, 8+ Years

Product ID: 259829318

Details

Age range (description)
Kid
Brand
4M
Item dimensions L x W x H
10.2 x 8.3 x
Size
original
Theme
Physics

🔋Eco-friendly zinc and copper electrodes

🧩Hands-on assembly for STEM skill-building

⏱️Real working digital clock powered by potatoes

SAR 68

Duties & taxes included

In stock

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Description

🥔⚡ Power up your STEM game with the original potato clock!

COMPACT GENIUS - Portable and sleek 10.2 x 8.3 x 6.4 cm design fits perfectly on any desk or learning space.
STEM IN ACTION - Engage critical thinking and scientific exploration through hands-on assembly and experimentation.
ECO CHIC ENERGY - Harness sustainable energy using zinc and copper strips, perfect for the eco-conscious innovator.
AWARD WINNING FUN - Join thousands of young scientists with a top-rated kit (#32 in Educational Science Kits) that’s as fun as it is educational.
POWER YOUR CURIOSITY - Watch science come alive with a real digital clock powered by potatoes—no batteries needed!

The 4M Green Science Potato Clock is an educational science kit designed for kids 8 years and up, featuring a real digital clock powered by potatoes using zinc and copper electrodes. This hands-on kit promotes scientific exploration and critical thinking through assembly and experimentation, making it a top-ranked, eco-friendly STEM toy.

Specifications

ASIN	B001T8OFQM
Age Range Description	Kid
Best Sellers Rank	#3,307 in Toys ( See Top 100 in Toys ) #32 in Educational Science Kits
Brand Name	4M
Country of Publication	China
Customer Reviews	4.4 4.4 out of 5 stars (1,261)
Educational Objective	Scientific Exploration, Critical Thinking
Global Trade Identification Number	00085761090811
Included Components	digital clock with wires, pots, cooper and zinc strips, connecting wire, transparent tapes
Is Assembly Required	Yes
Item Dimensions	10.2 x 8.3 x 6.4 centimeters
Item Part Number	4568
Item Type Name	Potato Clock Kit
Item Weight	0.01 Ounces
Manufacturer	4M
Manufacturer Part Number	4568
Manufacturer recommended age	8 years and up
Material Type	Zinc
Model Number	00-03275
Number of Items	1
Number of Packs	1
Set Name	4M Green Science Potato Clock
Size	original
Sub Brand	(-)
Theme	Physics
UPC	085761090811
Unit Count	1 Count

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