Vlad's Gadgets

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Logitech Z4 Stereo Speaker System

If you want good stereo speakers under $100, the Logitech Z4 is an excellent choice. It's a 2.1 stereo speaker system consisting of two satellite speakers and a subwoofer, providing…

Logitech Z4 Stereo Speaker System
Seniors Citizens Phone for Elderly People Also Useful For Young

This is a basic dual-band 900/1800Mhz GSM mobile phone aimed at elderly people. Unlike most phones currently on the market, it has large keypad buttons.
Why I Bought The Senior Citizen's…

Seniors Citizens Phone for Elderly People Also Useful For Young
Brief Blogs for Week Ending 2012-09-13

Lifehacker: "Top 10 Tricks for Turning Your Junk Into Money" - tips on selling old, unwanted stuff - http://t.co/YZsYtLG1 ->

SCA Illuminated Digital Air Pressure Gauge

The SCA Digital Air Pressure Gauge lets you quickly and accurately measure the air pressure in your car and bicycle tyres.

The pressure gauge is fully electronic and displays the measured…

SCA Illuminated Digital Air Pressure Gauge
Ecoforce Recycled Clothes Pegs – Rustproof and UV stable

Ecoforce Recycled Clothes Pegs are waterproof and made out of UV stable plastic. They are immune to many of the problems that plague traditional clothes pegs like rusting, rotting and…

Ecoforce Recycled Clothes Pegs – Rustproof and UV stable
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12 Channel Smart AA, AAA and 9V Battery Charger with Discharge Function

Written by Vlad on March 19, 2011 – 10:12 pm - 3,773 views

Smart battery charger with discharge function, loaded with 8 AA NiMH batteries

This is a microprocessor-controlled battery charger that can charge up to 10 x AA/AAA batteries and 2 x 9V batteries. It supports both NiCad (Nickel-Cadmium) and NiMH (Nickel-Metal Hydride) simultaneously. Each battery is independently monitored and charged, and a multi-colour LED above each battery indicates the charging status.

There is a discharge function that drains all the batteries completely before commencing a charging cycle, which is useful for rectifying “memory effects” and other common battery problems. It employs several mechanisms to ensure that batteries are completely charged, but not overcharged.

It comes with both a 12V DC power adapter that operates worldwide on mains voltages between 100-240V as well as a lead that plugs into a car cigarette lighter socket so you can charge batteries when you’re on the road.

I purchased this from Jaycar electronics, who call it 12VDC & 240VAC Smart Battery Charger Ni-Cd & Ni-MH. I have seen similar smart chargers on eBay, but most are 10-channel chargers with support for only AA and AAA batteries.

Why I bought the Smart AA & AAA battery charger

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