Up to 5 year warranty
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CS ONE (Gen 2) is our most versatile charger, compatible with virtually all 12V batteries across cars, motorcycles, boats, campers, and more. It automatically adapts for optimal safety and performance—making it the safest choice when you’re unsure.
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The CTEK BATTERY TESTER delivers fast, reliable diagnostics for 12V and 24V batteries and battery systems in any vehicle. Its intuitive colour display guides you through battery, cranking and charging system tests – giving clear results you can act on. Supporting all lead-acid battery types, it's built to perform.
CTEK BATTERY TESTER is your go-to tool for fast, accurate battery diagnostics. Whether you're a vehicle enthusiast or a workshop needing reliable testing, it delivers quick results in a compact, easy-to-use package. The 2.8" colour display presents clear verdicts, while comprehensive testing covers battery health, charge status, internal resistance, cranking performance and charging system output. It works with virtually any lead-acid 12V or 24V battery or battery system – including Regular Flooded, AGM, GEL and EFB – and supports 10 battery rating standards including CCA, EN and DIN. Simply connect the clamps and follow the on-screen prompts – the tester powers itself from the battery. No fuss, no guesswork. Just accurate answers, backed by CTEK's expertise in battery care.
| Warranty | 2 years |
|---|---|
| Warranty information | CTEK issues a limited warranty to the original purchaser of the product. Depending on the product, the limited warranty period will vary. The limited warranty is not transferable. The warranty applies to manufacturing faults and material defects. The warranty is void if the product has been handled carelessly or repaired by anyone other than CTEK or its authorized representatives. CTEK makes no warranty other than this limited warranty and is not liable for any other costs other than those mentioned above, i.e. no consequential damages. Moreover, CTEK is not obligated to any other warranty other than this warranty. |
Test any battery, fast
Complete battery, cranking & charging system diagnostics
Works with both 12V and 24V batteries
Clear colour display with instant pass/fail results
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