=VG= SemlerPDX

Update on my DIY TrackIR project -
Wireless TrackClip Pro has now been on for a several hours and the voltage on the battery has dropped by 0.40 Volts. If I do some very rough estimates, I am assuming this thing might last between 18-24 hours between charges. I'm leaving it on overnight to find out. The other connector for the magnetic micro USB charger tip is shown in this pic. They sell cords, or these tips that plug onto the end of a normal micro USB charging cable. They have a tiny green indicator light when powered. At $4 a piece (for a male and female pair of magnetic plugs) they are so worth it for the bi-directional connection option alone!

$4.00 NetDot Magnetic USB Charging Connectors
$2.92 3.7V 10440 AAA Lithium Ion Rechargeable Battery (sold in 4-pack for around $12)
$1.00 TP4056 (03962A) Charging Board with Protection
$1.00 MT3608 DC to DC Step Up Boost Converter
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$8.92 Total Cost