Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com has links to 45,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.

HOME Schematics Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches
Welcome to DiscoverCircuits.com - online since 2002

See Media Kit for
Advertising Opportunities

Attention Designers:  Please alert us by eMail if we have linked to sites
where your original material has been copied without your permission.
We will change to the LINK to your site.  
Thank you.

 

Hobby Circuits designed by Dave Johnson

Last Updated on: Tuesday, October 24, 2017 03:04 PM


Text & Graphics Copyright David A. Johnson, PE  --  ALL Rights Reserved.
LINKING to Dave's circuits is permitted but COPYING CONTENT to your WEB SITE server IS NOT!



Battery Charger Circuits
 
Circuits Designed by David Johnson, P.E. :

Eight-Solar Cell Lithium Ion Battery Charger Version 3

Fireflies_In_Jar_Solar_Light

Improved Solar Path Light

Indicates Battery Charge Current

LED_Light_8_Solar_Cell

LED_Light_for_Tool_Shed

Light_Pathway_1w_Solar_Cob_LED

Lighthouse_Solar_Powered

Lithium Battery Tester

Lithium Ion Solar Battery Charger-#2

Mason_Jar_Solar_Light

Modified 4 D Cell LED Lantern

Modified Colman Lantern3

NMH/NiCd 6v Battery Tester

Path_Light_Using_COB_LED_1w_Solar

Quartz_Clock_Solar_Powered

Solar 1w Cob LED Light

Solar Fireflies In Jar Light

Solar Lithium Ion Battery Charger using LT1129

Solar Path Light Improvement

Solar Powered Cell Phone Charger

Solar Powered Lighthouse

Solar Powered Lithium Ion Battery Charger

Solar Powered Mason Jar Light

Solar Powered Quartz Clock

Tool Shed LED Light

+5v Powered Charge Pump Battery Charger

12v_To_24v_Solar_Battery_Charger

1W Solar Path Light with COB

2-12v Battery Isolator Circuit with a LTC4412

4_D-Cell_LED_Lantern_Modified

6v NMH/NiCd Battery Tester

8 Solar Cell LED Light

8-Solar Cell Lithium Ion Battery Charger Version 2

Battery Amp-hour Capacity Tester

Battery Charge Current Indicator

Candle Power

Cell Phone Charger

Cell Phone Solar Powered Charger

Charge Pump Battery Charger-+5 Volts

Charging a 24v Battery Charger from a 12v Source

Circuit Indicates Battery Charge Current

Colman_Lantern3_Modified

Current Indicator for Battery Chargers

DIY Cell Phone Charger

Do It Yourself Portable Cell Phone Charger


 

Hobby Circuits by Category

eMail:
  David A. Johnson, P.E. about these circuits

 


 


Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches



 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |   
Privacy Policy


Discovercircuits.com endeavors to credit original designers.   Please alert us by eMail so we can
delete links to material that have been copied without your permission
.   Thank you.


Copyright of all original material on this website is the property
of David A. Johnson, P.E. (Dave Johnson & Associates ) unless otherwise noted.  

Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.
All material is provided "as is" without guarantees or warranty of any kind, either expressed or implied.