ANCEL BT310 Battery Tester 12V/24V Handheld Load Tester — 100–2000 CCA, SOH & SOC Diagnostics

Designed for DIYers and professional technicians, the BT310 consolidates multiple checks — battery health, cranking performance and charging system status — into a single, easy-to-read tool. It supports a broad range of battery chemistries and rating standards, stores past test reports for trend tracking, and includes built-in protections to avoid common testing mistakes.

How does the BT310 tell me if a battery needs replacing?

The BT310 analyses measured values (SOH, SOC, internal resistance, CCA and voltage) and interprets them into one of five straightforward outcomes, so you don’t need to translate raw numbers yourself. The result screen uses a backlit 128×64 display with adjustable contrast to make the recommendation clear in most light conditions.

• Delivers five result messages: GOOD BATTERY, GOOD-RECHARGE, CHARGE & RETEST, REPLACE BATTERY, BAD CELL-REPLACE.
• Measures internal resistance and CCA to detect weak performance under load.
• Displays SOH and SOC to show remaining capacity and overall condition.
• Adjustable contrast and backlight for visibility in garages or outdoors.

Will this tester work with my vehicle’s battery and charging system?

The BT310 supports both 12V and 24V systems and six battery types including Flooded, AGM (flat plate and spiral), GEL, EFB and Lithium-Ion. It accepts battery ratings from 100 to 2000 CCA and 30Ah–220Ah, and recognizes ten common rating standards for wide compatibility across cars, trucks, motorcycles, RVs and boats.

• Compatible with 12V & 24V electrical systems.
• 100–2000 CCA and 30Ah–220Ah battery capacity range.
• Supports CCA, BCI, CA, MCA, JIS, DIN, EN, SAE, IEC and GB rating standards.
• Works with diverse battery chemistries used in many vehicle types.

How accurate and safe are the test results?

Accuracy is driven by a precision smart chip and quality copper clamps, producing highly repeatable readings for informed decisions before replacing a battery. Built-in safety protects the tester and vehicle from reverse polarity, short circuits, overvoltage and overheating, cutting power automatically on unsafe connections.

• High-precision electronics for reliable SOH, SOC, voltage and resistance data.
• Four-way protection: reverse polarity, short-circuit, overvoltage, over-temperature.
• Reinforced silicone case and 800mm cable for durability and reach.
• No internal batteries required — powers from the tested battery for immediate use.

Can I compare results over time and track multiple vehicles?

The BT310’s Review Data function stores previous Battery, Cranking and Charging reports so you can compare tests and detect performance trends. Keeping test history helps identify gradual decline and supports maintenance planning across several vehicles.

• Built-in memory for past test records and trend comparison.
• Quickly retrieve earlier Battery, Cranking and Charging reports.
• Useful for fleet maintenance, seasonal checks, or monitoring a project car.

Who is this for? The ANCEL BT310 is aimed at automotive DIYers, independent mechanics and fleet managers who need a single, portable tool to evaluate batteries and charging systems across a wide range of vehicles. It’s also useful for anyone who wants to avoid unnecessary battery replacements by confirming condition before buying, and for professionals who value saved test history and built-in safety features. Backed by ANCEL’s one-year warranty, the BT310 offers broad compatibility and practical protections for everyday troubleshooting and preventive maintenance.