joule thief (dc to ac inverter) with auto cut-off charging….

joule thief (dc to ac inverter)
with auto cut-off charging.
lampu led indikator akan mati saat batre full di 4,2volt.

.
.
NOTE: burungnya malah nangkring disono lagi 😛

joule thief (dc to ac inverter)
with auto cut-off charging.
lampu led indikator akan mati saat batre full di 4,2volt. 

.
.
NOTE: burungnya malah nangkring disono lagi :P


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