Nick Koot
Miton Accu’s en Batterijen, Utrecht
We have 8 different battery testers, including 4 from Dokter Accu.
The 4-4-2 is just right in terms of features and ease of use
and that is the reason that we use this tester
the most!
Europe's most used battery tester!
- The number 1 in usability: The 4-4-2 Model D
- The most extensive possibilities: The 4-4-2 Model D
- The widest range of cables and Smart Connects
- Free user training for 1 or more colleagues
- Our testers are in use at all two-wheeler training institutes
B2 Lift BV
OUR PRIDE: THE 4-4-2
Welcome to the website of Dokter Accu. Through this website we would like to inform you about the usefulness and use of a battery tester for you as a bicycle maintenance specialist. The 4-4-2 battery tester is an easy-to-use and very useful piece of equipment that can hardly be missed in your workshop today. Many colleagues have preceded you.
B2 Lift BV

With the 4-4-2 battery tester you can quickly and easily see the status of a battery. Avoid bad buys and endless discussions with your customers and start saving time and money today!
Frank Balk – DokterAccu / B2 Products BV owner
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24/36/48 Volt
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Includes chart and report software
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Robust and simple
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2 year warranty (extendable)
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Including course in Ede

4-4-2 W 30 – 20 Ampere
€845,00
SOME FACTS AT A GLANCE
The 4-4-2 battery tester is indispensable for maintaining and testing electric bicycle batteries 24 and 36 and 48 Volt. Many colleagues have preceded you.
WHY TEST?
Would you also like to know why the electric bicycle goes uphill? Would you also like to know why the number of kilometers is decreasing? And whether the battery you have purchased is not only new on the outside, but also new on the inside?
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Power
Does the battery still have power (amps) to drive up the mountain in the highest support? You can charge the battery with 5, 7 or 10 Ampere.
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Battery content
What is the content of the battery? This measured in Ampere/hour determines the distance you can drive.
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Operation
Does the battery charger still work properly? You can check with the 4-4-2 at which voltage the charger will turn off.
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Free course
A free course is included with the purchase of a 4-4-2 battery tester. Take advantage of this and become an expert in testing E-bike batteries.
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For every brand
A connection is available for almost every brand. We dare to say that of the products available on the market, the 4-4-2 is the tester with the most possible connections.
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Versatile
The 4-4-2 Model D can test batteries from 6 to 48 Volts. The battery tester can handle: lead battery, NiMh, and various lithium batteries from multiple suppliers.
WHAT CUSTOMERS SAY ABOUT US
FREE DEMONSTRATION
Feel free to visit us in Ede for a demonstration or visit us at one of the upcoming trade fairs.
We are sure you will fully understand the power and simplicity of our battery tester after this.
We are open on working days from 9am to 5pm by appointment. We are closed on weekends.
Fast & Adequate Testing
The 4-4-2 is able to test the battery at 10A (briefly) to measure the actual power in the battery. Within 30 seconds you will have your first conclusion.
Brand & Battery Independent
The 4-4-2 Model D can test batteries from 6 to 48 Volts. The battery tester can handle: lead battery, NiMh, and various lithium batteries from multiple suppliers.
Avoid Bad Buys
This 4-4-2 battery tester can make money for you and save money for you by:
- testing the battery when purchasing used electric bicycles
- preventing the purchase of damaged batteries







