DC Power Technologies FS3 Version 3 - Technical Hardware Manual - Manual (Page 8)

Page | 7
3. Modular Charger Philosophy
The modular charger concept represents a fundamentally different
approach to the way in which a forklift battery charger is designed.
Historically battery chargers have been designed to match a
specific battery type and rating. These uncontrolled chargers need
to be very closely matched to the intended battery. Due to the large
number of combinations of voltage, amp-hours, cell type and
recharge times, this results in a wide range of charger models being
required.
Modular
The modular charger is based on the deployment of paralleled, high
frequency charger modules with microprocessor oversight
controlling the charge parameters. Modules can be easily added or
removed as required and the controller is configured via PC
software to set the charger’s particular rating.
Flexible
The modular charger series is capable of charging batteries of any
nominal voltage in the range of 24V - 80V and offer the choice to
operate on AC supply ranges of 208V single phase through to 480V
three phase. The modules can be paralleled to a maximum of three,
five or nine depending on the charger model.
Redundancy
Using parallel-connected charger modules also introduces the
capability to offer redundancy, which is a unique and desirable
feature for a forklift battery charger. Redundancy offers the
capability to complete a charge with backup modules should an
issue arise, albeit at a slower rate