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Circuits designed by David Johnson, P.E.
Last Updated on: Monday, January 01, 2018 04:03 AM


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

+5v Powered Charge Pump Battery Charger 

6v NMH/NiCd Battery Tester

8-Solar Cell Lithium Ion Battery Charger Version 2

Battery Amp-hour Capacity Tester

Battery Charge Current Indicator

Battery Charging Generator Starter

Charging a 24v Battery Charger from a 12v Source

Current Indicator for Battery Chargers

Do It Yourself Portable Cell Phone Charger

Eight-Solar Cell Lithium Ion Battery Charger Version 3

Modified 4 D Cell LED Lantern

Modified Colman Lantern3

Solar Fireflies In Jar Light

Solar Lithium Ion Battery Charger using LT1129

Solar Path Light Improvement

Solar Powered Cell Phone Charger

Tool Shed LED Light

8-Solar Cell Lithium Ion Battery Charger Version 2            

Li-Ion Battery Charger

Battery Amp-hour Capacity Tester

Eight-Solar Cell Lithium Ion Battery Charger Version 3

Solar Lithium Ion Battery Charger using LT1130

 

 

Dave's Circuits

Hobby Circuits

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