Bosch BAT155 Heavy Duty Battery Tester
In stock
The Bosch BAT 155 is a powerful and advanced battery and electrical system tester designed specifically for the commercial vehicle industry. Utilizing patented single-load, dynamic resistance technology, it delivers fast and precise diagnostics for 6V, 12V, and 24V battery systems, ensuring reliable results for various battery types, including AGM, Gel Cell, flooded lead-acid, Start/Stop EFB, and Commercial SLI batteries.
The BAT 155 features a micro-load test that provides proven accuracy, capturing essential metrics like State of Health (SOH) and State of Charge (SOC). Its integrated infrared temperature sensor further enhances measurement accuracy by accounting for environmental conditions. An integrated printer allows for on-the-spot reporting, offering customers a clear snapshot of their battery’s condition.
Key Features
✔︎ Comprehensive Battery Compatibility: Tests 6V and 12V batteries with 100–6,000 CCA capacity, including AGM, Gel Cell, flooded lead-acid, Start/Stop EFB, and Commercial SLI batteries.
✔︎ Multi-System Testing: Diagnoses 12V and 24V charging systems with a diode/ripple test for reliable performance.
✔︎ Integrated Printer: Instantly generates test results for customer records, including SOH and SOC percentages.
✔︎ Infrared Temperature Sensor: Measures battery temperature for more accurate CCA assessments.
✔︎ Dynamic Resistance Technology: Patented technology ensures fast, consistent, and accurate results.
✔︎ Detachable Clamps: Easily replaceable clamps for long-term usability.
✔︎ Optional add-ons: Expand functionality with an optional Amp Probe and Voltmeter.
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Shipping & Returns
Shipping & Returns
• Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
• Returns: You may return or exchange products within 14 days of receiving your order. Learn More
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FAQ's
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How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1–2 business days. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
What is your return policy?
What is your return policy?
We accept returns within 14 days of delivery. To be eligible, items must be unused, in their original packaging, and accompanied by proof of purchase. If the item is faulty or damaged, we will cover the return shipping and provide a replacement or full refund.

