User manual
Applications:
■ DC power supply testing
■ Characterization of rechargeable 
batteries - battery test mode is provided 
that will measure the ampere*hour (Ah) 
characteristic of a battery
■ Fuel and solar cell testing
■ High voltage applications
2400 W form factor
6
00 W - 1200 W form factor
300 W form factor
Hex-head screw terminals
H
ex-head screw terminals allow for greater
application of torque to reduce contact resistance between 
interface cables and terminal screws.
Present on high-power models 8518 through 8526.
23
www.bkprecision.com
8500 Series
DC Electronic Loads
Remote Control
These DC loads can be remotely controlled
from any PC with USB or RS232 interface, 
allowing the user to fully program and 
monitor all parameters. An RS232 & USB to
TTL serial converter cable is included. For
users wanting to write their own custom 
software, LabVIEW drivers are available for
download via the B&K Precision website.
Example of battery discharge characteristics of 
a AA alkaline battery
Application video demonstrating
battery discharge testing using an
8500 series DC Electronic Load, and
a sealed lead acid (SLA) battery.
http://goo.gl/mKdbG
Scan QR code
to view video
Battery amp-hour discharge test using an 8500 series DC electronic load
http://goo.gl/BN7r8
DC electronic loads application note
Includes practical DC load 
applications including software
example scripts plus detailed
DC load performance 
verification procedures.
List Mode
A list of command sequences can be stored in
non-volatile memory and executed 
independently of a computer. Execution in 
list mode greatly reduces command 
processing time and computer interaction 
during product testing. The command 
sequence can be entered manually from the
front panel or downloaded from a PC via
RS232 or USB interface.
Application Software
The included application software supports
front panel emulation of the load and 
includes a battery test application which 
provides Ah rating of a battery and 
adjustable cut off voltage levels (safety 
voltage). Whether designing a device with
Nickel-Metal Hydride or Lithium-Ion 
batteries, the 8500 series DC electronic 
loads have the capabilities to test their 
characteristics. 
Transient Generator
The 8500 series offers a variable frequency 
generator that can be used in all operating
modes. The DC load will toggle between two
preset levels at a frequency between 0.1 Hz
to 1 kHz, either continuously or controlled by
a trigger. 










