BT-BC 2 D - Battery charger EINHELL - Free user manual and instructions

Brand	Einhell
Model	BT-BC 2 D
Product Type	Automatic Battery Charger
Charging Technology	Micro-processor controlled with 3-step IUoU charging characteristic
Input Voltage	220 - 240 V ~ 50 Hz
Rated Input Current	0.1 A
Output Voltage	12 V DC
Output Current	2 A
Battery Capacity Range	3 - 40 Ah
Suitable Battery Types	Lead-acid, gel, maintenance-free, car and bicycle batteries
Display Indicators	LED: power on, charging, battery fully charged
Charging Leads	With sturdy pole clamps
Protection Features	Electronic overload, voltage reversal, and short circuit protection
Net Weight	0.37 kg
Gross Weight	0.5 kg
Packaging Dimensions (L x W x H)	200 x 135 x 60 mm
Barcode	4006825570748
Sales Unit	12 pieces
Maintenance	Keep device dry and clean; disconnect from mains before cleaning
Safety Notes	Do not charge non-rechargeable batteries; avoid water ingress; use only in dry environments

Frequently Asked Questions - BT-BC 2 D EINHELL

What types of batteries can I charge with the Einhell BT-BC 2 D?

The charger is suitable for lead-acid, gel, and maintenance-free batteries with a capacity of 3 to 40 Ah. It is ideal for car and bicycle batteries.

How does the 3-step charging process work?

Step 1 charges with nearly constant current up to approximately 70% capacity. Step 2 uses constant voltage up to about 90%. Step 3 maintains a constant voltage (IUoU characteristic) to keep the battery fully charged.

Can I leave the charger connected to the battery for long periods?

Yes, the automatic micro-processor control allows for long-term charging and charge maintenance, making it safe to leave connected for batteries not in permanent use, such as on boats or lawn mowers.

What do the LED indicators mean?

There are three LED states: power on (device connected to mains), charging (battery is being charged), and fully charged (battery is full).

What safety protections does the charger have?

The charger includes electronic protection against overload, voltage reversal (reverse polarity), and short circuit, ensuring safe operation.

How long does it take to charge a battery?

Charging time depends on battery capacity and discharge level. For a typical 12V car battery (e.g., 40 Ah), the 2A output will take approximately 20 hours from fully discharged, but the 3-step process optimizes charging.

Can I use this charger for a gel battery?

Yes, the charger is explicitly stated to be proper for gel batteries due to its micro-processor controlled charging curve.

What is the input voltage requirement?

The charger requires a mains supply of 220 - 240 V ~ 50 Hz.

How do I connect the charger to the battery?

Connect the red clamp to the positive terminal (+) and the black clamp to the negative terminal (-). Ensure the clamps have a secure connection.

What is the warranty period for the Einhell BT-BC 2 D?

Warranty information is not specified in the manual; please refer to Einhell's general warranty policy or contact customer support for details. Typically, Einhell offers a 2-year warranty.

USER MANUAL BT-BC 2 D EINHELL

The BT-BC 2 D is an automatic battery charger controlled by a micro-processor. This means, it's especially to charge maintenance-free batteries as well as for long time charging and for charge maintenance from batteries which are not permanently in use, such as boats, lawn mowers and whatnot. Due to the integrated micro-processor the charging curve has 3 steps. Step one charges the battery with nearly constant current up to approx. 70%, step two with constant voltage up to approx. 90%. Step three keeps the battery voltage constant (IUoU-charging characteristic) and so is the battery always fully loaded. Therefore is the tool also for lead acid battery and gel battery optimally proper. The battery charger is proper for car and bicycle batteries.

Features

■ Charging automatic by a controlled microprocessor
■ LED-display unit on, charging and battery fully charged (1)
■ Charging leads with sturdy pole clamps (2)
■ Electronic overload-, voltage reversal- and short circuit protection
■ Power line with european plug

Technical Data

■ Mains: 220 – 240 V \~ 50 Hz
■ Rated input current: 0.1 A
■ Rated output current: 2 A
■ Rated output voltage: 12 V d. c.
■ Battery capacity: 3 – 40 Ah

Logistic Data

■ Net weight: 0.37 kg
■ Gross weight: 0.5 kg
■ Packing dimensions: 200 x 135 x 60 mm
■ Bar code: 4006825570748
■ Sales unit: 12 pcs

Also proper for gel batteries!