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30A 12V DC TO DC BATTERY CHARGER

MODEL NO: 

DCBC30

Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these 

instructions, and properly maintained, give you years of trouble free performance.

IMPORTANT:

 PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE 

THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR 
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.

1.  SAFETY  

IMPORTANT:

 To reduce the risk of a battery explosion, follow these instructions and those published by the battery manufacturer and the 

manufacturer of any equipment you intend to use in the vicinity of the battery. Remember to review warning marks on all products and on 

engines. Modern vehicles contain extensive electronic systems. Check with the vehicle manufacturer for any specific instructions regarding the 

use of this type of equipment on each vehicle. No liability will be accepted for damage/injury where this product is not used in accordance with 

all instructions.

1.1. 

  

ELECTRICAL SAFETY

 

‰

   WARNING! 

For automotive 12 volt use only.

 DO NOT 

use with dry cell or lithium batteries.

 

‰

  

WARNING!

 It is the user’s responsibility to check the following:

 

Check all electrical equipment and appliances to ensure that they are safe before using. Inspect power supply leads, plugs and    

 

all electrical connections for wear and damage.

 

Electrical safety information. It is important that the following information is read and understood.

1.1.1.   

Ensure that the insulation on all cables and on the appliance is safe. 

1.1.2.   

Regularly inspect cables and plugs for wear or damage and check all connections to ensure that they are secure.

1.1.3. 

  

Inadequate ventilation may over-heat the charger and cause inefficient operation.

1.1.4.   

The battery charger contains hazardous voltages. There are NO user serviceable parts / components inside. To avoid any hazard  

 

this unit must be repaired or replaced by the vendor or equally qualified person.

 

8

  

DO NOT

 expose the unit to sustained moisture or extreme weather conditions. 

1.2.    

GENERAL  SAFETY

 

   DANGER! BE AWARE, LEAD-ACID BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION.   

  FOR THIS REASON, IT VERY IMPORTANT TO READ AND FOLLOW THESE INSTRUCTIONS CAREFULLY, EACH TIME YOU USE  

  THE CHARGING EQUIPMENT. 

 

9

   Follow these instructions and those published by the battery and vehicle manufacturers, and the maker of any equipment you intend to  

  use in the vicinity of the battery. Remember to review warning marks on all products and on engines.

 

8

 

DO NOT

 smoke or allow a spark or flame in the vicinity of battery or engine.

 

9

   Wear safety eye protection and protective clothing. Avoid touching eyes while working near battery.

 

9

   Remove personal metallic items such as rings, bracelets, necklaces and watches. A lead-acid battery can produce a short-circuit current  

  which is high enough to weld a ring or the like to metal, which would cause severe burns.

 

9

   Have fresh water and soap nearby in case battery acid contacts skin, clothing or eyes.

 

9

   Wash immediately with soap and water if battery acid contacts skin or clothing. If acid enters eye, flush eye immediately with cool, clean  

  running water for at least 15 minutes and seek immediate medical attention.

2.  INTRODUCTION

DC to DC battery charger ideal for charging an auxiliary battery in vehicles such as camper vans and caravans. Will charge your second 

battery whilst driving and will be linked to the ignition switch to avoid draining your main battery. Suitable for 12V Gel, AGM, Calcium and 

conventional Lead Acid batteries. Can be used in conjunction with a solar panel when the vehicle is switched off. Protected against short 

circuits, open circuits, output reverse polarity, over charging, over current and overheating. Rated at IP65 water resistance. 2-Year guarantee.

3.  SPECIFICATION

Model no: ................................................................DCBC30

Input: ...................................................................11.5 - 15.5V

Output: ...................................................................

13.3 - 16V

Output Charge: ..........................................................30A DC

Battery Range: .................................

60 - 300A/h (2000 CCA)

Cable Length:............................................................. 270mm

I

P Rating:

 ........................................................................

IP65

Working Temperature Range: ............................-10 to +90°C

S

olar Input (Optional):

 

3 Stage (Max Solar Input 25V / 400W)

DCBC30      Issue 1      30/03/20

Original Language Version

© Jack Sealey Limited

Refer to 

instructions

   fig.1

Protect from 

rain

Wear eye 

protection

Wear protective 

gloves

Warning:

Electricity

Warning!

corrosive

substance

Use in

well 

ventilated

areas 

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