Xenotronix

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MHTX7

MHTX7 NiMH Battery Charger

Designed to charge up to twelve NiMH battery cells ranging from 500 mAh to 5000 mAh (5Ah).

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When Accuracy and Quality Count
The Optimizer

 

BATTERY SOLUTIONS THAT DELIVER

Xenotronix standard products include a complete line of high quality off-the-shelf chargers for Sealed Lead-Acid, Nickel Cadmium and Nickel Metal Hydride batteries.

 

“Quality products, quality engineering!” - Bob Smith, Battery Co.

What is an algorithm?

An algorithm reflects the curves and parameters that describe the voltage, current and temperature of a battery. The algorithm itself is utilized to describe the optimum method of charging a battery.

 

I was taught that the basic charger circuit will recharge a battery at least once and maybe more.

Each battery has an optimum recharge algorithm that will achieve the maximum lifetime for a given application. The closer the circuit comes to being able to meet the exact parameters of that algorithm, the longer the battery will last in that application. The simple 2 diodes and a transformer charger circuit is subject to changes in temperature and line voltage and does not match the algorithm of any battery.

 

What does "precision charging" mean?

The closer a charger can come to duplicating the exact optimum algorithm of a given battery in a given application, the longer the battery life will be in that application. Precision simply means designing a charger so that the performance of the charger, duplicates the requirements of the algorithm as exactly as possible, within the constraints of the application. Such as cost, temperature, etc.

 

Why do I need temperature compensation?

With a change in temperature the electrochemistry of the battery changes. The charger must be able to deal with the changes in order to be able to maximize battery life. Temperature compensation is the way the charger changes with respect to temperature in order to maximize battery life. If the application is mostly at a fixed temperature, then compensation is not necessary. But if the application temperature changes more than 30C then compensation is strongly recommended for maximum battery life.

 

What happens if you reverse the battery on the charger?

With our standard line of lead acid chargers, nothing. The LED will change to red and the charger shuts down, awaiting a proper connection. With many of the other products on the market, this simple act often results in destruction of the charger and possible harm to the battery.

 

What is the difference between Amps and AmpHours.

Amps is the unit of measure that is used to measure the rate at which electrical energy is flowing from the charger into the battery or the flow of electrical energy flowing from the battery to a load. It describes the rate of flow. AmpHours is the rate of flow times the length of time it is flowing. The AmpHours is a measure of capacity and is used to rate batteries. As an example, 2.0 Ampere of flow times 2.0 hour is 4.0 AmpHours


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