photo of the hands of a man using a tester to repair an electrical board of a battery pack. homemade repair work

adjusting arm art battery blue board brand building checking child chip circuit clothing component computer connection construction control craftsman design digital disassembler diy efficiency electrical electricity electronics electrotechnical equipment finger fixing gadget games glasses hand hands home homemade inspection installation instrument interior labor learning limb machine man measurement men metal pack panel pen person photo play power professional repair repairman resistance screw screwdriver skill technician technology tester tool tools toy using white work working writing yellow