Projecta 6/12/24V Automatic & Manual 21 AMP 2 Stage Battery Charger


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Product Description

Projecta 6/12/24V Automatic & Manual 21 AMP 2 Stage Battery Charger, 1 Year Warranty. Designed for the most demanding environments such as heavy duty transport and agriculture. Delivers ample power, sturdy construction and various charging options.


  • Multi-Voltage Operation: Adjustable to suit 6, 12 or 24 Volt operation
  • Automatic Or Manual: Charging options keep the operator in control
  • 0–14 Hour Timer: Automatically turns charger off at set time
  • Engine Start Function: Starts vehicle with a flat battery after a controlled 5 minute charge (subject to battery condition)
  • L.E.D Display: Displays Volt and Amp readings for accurate charge status

Multi-voltage operation:

The Workshop charger range features multi-voltage operation, ideal for industrial environments where 6V, 12V or 24V batteries are often utilised.

Automatic, safe & easy:

Fully automatic and spark-free, the Workshop range offers short circuit and polarity protection making them safe to use on batteries still connected to a vehicle. Can be left connected indefinitely without risk of overcharging. User friendly dials and displays allow quick and easy customisation of settings.

Engine Start:

The Workshop range of battery chargers feature an engine start function which delivers a high current charge into the battery. It simply requires the charger to be connected to the battery and given a pre-charge after which time you can start your engine (subject to battery condition).

2 & 8 Stage Charging Options:

The Workshop range of chargers each feature total automatic charging functionality, and depending on the level of sophistication required for the job at hand are available in either 2 stage (HDBC20 & HDBC35) or 8 stage (HDBM4000) options.

The graph below details the different charging stages for both offerings. The two HDBC chargers utilise a traditional, robust and ultra reliable process to deliver a powerful charge suitable for automotive batteries. The 2 stage charging process ensures the battery is topped up quickly, safely and won’t be over charged.

The 8 stage charging process of the HDBM4000 ultimately delivers a more sophisticated and thorough charge, giving your batteries longer life & better performance in the long term. An advanced ‘Analysis’ process within the 8 stages tests the battery during the charging process and if a pass is detected will proceed to ‘Float’ mode. A fail however will result in a ‘Recondition’ charge to revive the battery. Once the battery is fully charged, the charger will continue to monitor the battery without the risk
of overcharging.


Projecta Product Manual



Brand Projecta

GTIN 9315219802811

Warranty Period: 1 Year

Product Category Battery Chargers

Output Current Rating (Amps) 21

Product Type Workshop range of Battery Charger

Start Voltage 6V: 50A at 3.6V | 12V: 50A at 7.2V | 24V: 25A at 14.4V

Output System Voltage 6V / 12V / 24V

Dimensions 301 x 264 x 161 mm (L x W x H)

Charger Voltage 6/12/24V

Net Weight (kg) 11.5

Charger Type 2 Stage Automic & Manual

Input 240V, 50Hz, 636W

Approvals Electrical Satefy, EMC

Charging Control 6V: 7.1V; 6.7V; 0.0V | 12V: 14.2V; 13.4V; 0.0V | 24V: 28.4V; 26.8V; 0.0V (Cut out; Cut in; Start)


Projecta - Some Things You May Not Know About Us!


Product Q&A

Ask Us a Question
  • What size battery charger do I need for my lead acid battery I have in my camper?

    A good battery charger rule of thumb for charging a lead acid battery, is using a charger with output current (amps) of 10-20% of the battery total stored capacity (Ah).

    So, for example if the battery is 12V 100Ah, the charger need to be minimum of 10A and maximum of 20A.  Often splitting the difference at 15% (so a 12V ~15A charger) is a good option. Happy charging!


    For details relating to this product's warranty CLICK HERE


    For details relating to our delivery process CLICK HERE

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