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Tip: Better Antuino powering

Martin Kratoska
 

I replaced the battery holder for 6x AA cells with
a holder for 2x 18650 Li-Ion cells and using two 3.7V/9900 mAh units. The Antuino holds for long hours, actually I never get the batteries discharged. The use of 2x 18650 is also significantly cheaper compared to 6x non-rechargeable 1.5 cells. Another good side effect is that the internal 78L05 regulator does produce much less heat...

73,
Martin, OK1RR

Gerry Kavanagh
 

Did you add charging circuitry too?
Also, where did you find 9900mAh 18650s?
/ Gerry

Martin Kratoska
 

Did you add charging circuitry too?
Also, where did you find 9900mAh 18650s?
/ Gerry