Precise, Durable, Capable.TOPDON’s BT300P is our newest 12V lead-acid vehicle battery tester with a Built-in Printer. It can test 100 to 2000 Cold Cranking Amps (CCA) batteries. It’s compatible with Flooded, AGM, GEL, and EFB batteries; and has accredited standards including: CCA, JIS, EN, DIN, SAE and IEC.