Vlad's Gadgets

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Gadget Diary – Shopping at Woolworths

It was really hot here in Sydney on Saturday night, so I went to Woolies, just before midnight, to get myself some cold bottles of soda water and Pepsi Max.…

Bosch DLE 70 Laser Distance Measuring Tool – The Tape Measure of the Future

The Bosch DLE 70 is a portable laser rangefinder (distance measurement device). You use it like a laser pointer to mark any target object whose distance you want to measure,…

Bosch DLE 70 Laser Distance Measuring Tool – The Tape Measure of the Future
Welcome to Vlad’s Gadgets

Welcome to Vlad's Gadgets! This site is under construction. Soon, there will be all sorts of interesting stories about gadgets I have bought.

12 Channel Smart AA, AAA and 9V Battery Charger with Discharge Function

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.…

12 Channel Smart AA, AAA and 9V Battery Charger with Discharge Function
Sandisk Extreme III SDHC card Transfers at 30MB/s

The Sandisk Extreme 30MB/s SDHC cards are currently the fastest Class 10 SD cards on the market, with a maximum read and write speed of 30MB/s. This makes them ideal…

Sandisk Extreme III SDHC card Transfers at 30MB/s
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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 - 3,824 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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