Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Rechargable batteries : how long will they last?

Status
Not open for further replies.

BioniC187

Member
Hi there,
I have a quick question. Say for example i have a rechargable battery that is rated at 1.2V and 2000maH. Now this is connected to a load that requires 0.5W. How long can this battery supply this load? Equations etc, thanks :)
 
It is probably a modern Ni-MH cell. Its capacity does not become reduced at its rated mAh.
0.5W from 1.2V is a current of 0.5W/1.2V= 417mA.
The battery cell can power the 0.5W load for about 2000mAh/417mA= 4.8 hours.
 
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top