In mid-2011 I purchased a Shark SV75SP 14 cordless hand-held vacuum cleaner for small messes. The unit is shown in the picture below.
The batteries on the Shark lasted for about 10 minutes before they were drained and I was constantly recharging the thing. Worse yet, the instructions said to charge it for 16 hours (that’s a long time!). [Read more…] about Practical Electronics – Hacking My Shark Cordless Vacuum Project, Part 1
