True blue power TB17 Series, Installation Manual And Operating Instructions

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4 Manual Number 9018047 • Revision L, January 6, 2022
SECTION 1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The TB17 series Advanced Lithium-ion Battery, part numbers 6430017-( ), is designed to deliver
high current capability to start piston and light turbine aircraft engines and successively, provide
DC power capacity to the primary electrical bus in the event of generator function loss. The TB17
is a sophisticated power system that utilizes state-of-the-art Nanophosphate
® lithium-ion battery
cell technology which provides improvements in performance, safety, life and weight when
compared to traditional or competing aircraft batteries. Consideration given to key electrical and
mechanical design principles yield compliance with regulatory standards and meet or exceed
industry expectations. The TB17 is a complete battery solution that provides significant value and
benefit to an aircraft designer, owner and operator.
The TB17 requires professional use and maintenance to deliver maximum performance and value
as designed. This manual contains information related to the specifications, installation, operation,
storage, scheduled maintenance and other related topics associated with the proper care and use
of this product.
1.2 PHYSICAL ATTRIBUTES
The TB17 is a single, integrated component contained in a metal enclosure with positive and
negative power terminals and a 7-pin circular communication connector. The top of the enclosure
supports the use of a hold-down bar for typical aircraft mounting. There is a 1-inch diameter vent
port on top of the unit for an exhaust connection that directs any released emissions appropriately.
1.3 UNIT ARCHITECTURE
The unit is comprised of three primary functional pieces:

Battery modules

“Switch” board; a printed circuit board assembly to control charging and discharging

“Control” board; a printed circuit board assembly to serve as the battery management
system
Each battery module consists of twenty-eight (28) cells, arranged in four strings of seven parallel
cells connected in series. Two modules are connected in series to provide the total battery output.
The modules are designed identically and each includes multiple temperature monitors and a
heater. The cells are connected with welded bus bars which contain an individual fuse for each cell
in the module.
The Switch board incorporates the ability to enable and disable charging or discharging depending
on the health of the battery and associated conditions. It also contains a charge limiting function
and current monitoring.