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.

4m Potato Clock Diy Green Science Chemistry Engineering Lab Stem

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Description

🥔⏰ Power up your STEM game with spud-fueled innovation!

COMPLETE DIY KIT - Includes digital clock, wires, copper & zinc strips, and clear step-by-step instructions for easy assembly.
GREEN ENERGY IN ACTION - Harness the power of everyday spuds to fuel a working digital clock—no batteries needed.
STEM LEARNING MADE FUN - Engage young minds with hands-on chemistry and engineering that sparks curiosity and creativity.
ECO FRIENDLY INNOVATION - Teach kids the importance of sustainable energy and reducing carbon footprints with a simple, interactive project.
PROUDLY DISPLAY YOUR CREATION - Watch your child’s confidence grow as they build and showcase their very own potato-powered clock.

The 4M Potato Clock DIY Kit transforms two ordinary potatoes into a sustainable power source for a digital clock, offering kids a hands-on STEM experience that combines chemistry, engineering, and green science. This battery-free kit includes all necessary components and detailed instructions, making it an ideal educational gift that inspires eco-conscious creativity and practical learning.

Specifications

ASIN	B001T8OFQM
Age Range Description	Kid
Best Sellers Rank	#120,023 in Toys & Games ( See Top 100 in Toys & Games ) #1,291 in Educational Science Kits
Brand Name	4M
Customer Reviews	4.4 4.4 out of 5 stars (1,318)
Educational Objective	STEM
Global Trade Identification Number	00085761090811
Included Components	digital clock with wires, pots, cooper and zinc strips, connecting wire, transparent tapes
Item Dimensions	4 x 3.25 x 2.5 inches
Item Part Number	4568
Item Type Name	Potato Clock Kit
Item Weight	0.27 g
Manufacturer	Toysmith
Manufacturer Maximum Age (MONTHS)	180
Manufacturer Minimum Age (MONTHS)	96
Manufacturer Part Number	4568
Manufacturer Warranty Description	33 Day Warranty Against Manufacturer Defects
Material Type	Potato
Model Number	00-03275
Number of Items	1
Set Name	4M Potato Clock
Size	original
Sub Brand	(-)
Theme	STEAM
UPC	085761090811
Unit Count	1 Count

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NZ$103

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to New Zealand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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4M Potato Clock DIY Green Science Chemistry Engineering Lab - STEM Toys Educational Gift for Kids & Teens, Girls & Boys, Brown

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