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Descriptions

Product Features
Parasitic Draw Check: The battery drain tester measures standby current between the battery terminal and disconnected negative cable. The live reading helps confirm whether an electrical load remains active after the vehicle enters sleep mode.
Dual Electrical Display: The digital screen presents voltage and current values during diagnosis. The combined reading reduces the need to switch instruments while checking battery condition and standby consumption.
Guided Status Reference: The printed reference identifies 0.02–0.05A as a normal standby range. A reading above 0.05A may indicate battery drain that requires circuit-level investigation.
Clamp-and-Hook Leads: The clamp lead secures to the battery terminal while the hook lead connects to the removed negative cable. The in-line arrangement keeps the circuit active for live standby-current testing.
Service-Friendly Setup: The compact tester supports automotive electrical troubleshooting without permanent installation. The direct controls and visible polarity markings simplify repeated workshop checks.
Technical Specifications
| Model | BDT-2 |
| Product Type | Automotive Parasitic Battery Drain Tester |
| Recommended System | 12V Automotive Electrical Systems |
| Current Test Range | 0.01A–10A |
| Voltage Test Range | DC 4.5V–30V |
| Display | Dual LED Digital Display — Red: Voltage / Blue: Current |
| Overload Protection | Replaceable Inline 10A Automotive Blade Fuse |
| Connections | Insulated Battery Clamps + Spring Clip Probe |
| Cable Length | 1.4 m / 55 in |
| Display Unit Size | 53.6 × 34 × 20 mm |
| Clamp Length | 78 mm |
| Operating Temperature | −10°C to 65°C |
Diagnostic Reference
| Normal Standby Current | Approx. 0.02–0.05A* |
| Possible Parasitic Drain | Above 0.05A may require further diagnosis* |
| Test Connection | Install in series between the disconnected negative battery terminal and negative battery cable |




Technical Data Sheet
Shipping & Returns
Shipping Policy (Full Shipping Details)
Standard Shipping: 7-15 business days.
Expedited Shipping: 3-7 business days (FedEx, DHL, or UPS).
Shipping costs vary by country and are shown at checkout.
PS: Shipping may be delayed during holidays and vacations. We apologize for any inconvenience and appreciate your patience.
Refund Arrival Time: 3-5 working days
Refund Path: return to the original path
Refund Contact Information: angel@chinadaier.com