Battery Charger Academy

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Charger vs Battery.

The most important quality of a battery charger is the precision of the final voltage during the battery charging cycle. If the voltage is too high, gassing will occur in the battery rendering it unusable as a result of dried out cells and grid corrosion due to increased acid concentration and the excessive heat generated when charging. If the voltage is too low, the battery will not charge properly and it will lose more and more capacity until it finally becomes unusable.

• Typical linear charging behaviour compared to CTEK battery charger behaviour.
• The task of the battery charger.
• Construction and function of different types of battery charger.
• Choosing the correct battery charger size.
• Explanation of the different types of battery (Wet, MF, GEL and AGM).
• Sulphated battery and CTEK desulphation.

CTEK battery chargers charge your battery in a controlled manner in order to optimise its capacity and service life.

Battery charger vs safety

Battery chargers are often used in damp and dusty environments:
Outdoors
In the garage
In caravans and motor homes
In harbours and on boats

When charging outdoors, you must use a battery charger that has been approved for outdoor use. CTEK battery chargers have been approved (IP65 and IP44).

Read more on safety.

Battery charger vs equipment

Interruptions and ripple from voltage and current may damage equipment connected to the battery:
Audio equipment in cars.
Telephone equipment in caravans.
GPS and navigational aids in boats.
Sensitive equipment in emergency service vehicles.
Data and control boxes

• Comparison between linear battery chargers and CTEK battery chargers with respect to current and voltage ripple.
• Comparison between switch mode battery charger and CTEK battery charger with respect to high frequency current ripple and EMC.

The noise and ripple from the CTEK battery chargers is negligible.

Battery charger vs authority regulations

All battery chargers has to carry the CE mark in the EU. For your own safety, demand a third parties testing and approval of the equipment.

CTEK battery chargers are tested and approved by Intertec SEMKO AB and UL.