Vlad's Gadgets

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ASIX AX88178 USB 2.0 to Gigabit Ethernet Adapter

The easiest way to add high speed Gigabit Ethernet networking to a Laptop, Netbook, Media Centre PC or Desktop PC is with a USB Gigabit Ethernet adapter.

All USB Gigabit Ethernet adapters…

ASIX AX88178 USB 2.0 to Gigabit Ethernet Adapter
Aussie Automatic Coin Counter

The Aussie Automatic Coin Counter is a coin jar with a lid that contains a coin slot and an electronic counting mechanism. The mechanism measures the diameter of each coin…

Aussie Automatic Coin Counter
SwissGear Wireless Presenter with Laser Pointer

The SwissGear wireless presenter is a small handheld remote control for PowerPoint presentations. It also has an inbuilt red laser pointer. It is manufactured by Wenger, who are famous for…

SwissGear Wireless Presenter with Laser Pointer
USB Solar Battery Charger Keeps Your Mobile Phone Running When You Are On The Move

Do you hate it when the battery runs out when you're on your mobile phone and you don't have a PC or charger on hand? If you have a power…

USB Solar Battery Charger Keeps Your Mobile Phone Running When You Are On The Move
Flashing Telephone Ringer Lets You Silently Know When Someone is Calling

A flashing telephone ringer, also called a telephone strobe light, phone strobe flasher or silent telephone ringer, is a small device that you connect to your landline telephone socket. When…

Flashing Telephone Ringer Lets You Silently Know When Someone is Calling
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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 - 3,330 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

(more…)


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