4 Manual Number 9019288 • Revision C, May 21, 2020
SECTION 1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The TB40 series Advanced Lithium-ion Battery, part number 6430040-( ), is designed to deliver
high current capability to start piston and light turbine aircraft engines and subsequently, provide
power to the aircraft electrical bus in the event of generator function loss. The TB40 is a
sophisticated energy storage and power system that utilizes state-of-the-art Nanophosphate®
lithium-ion battery cell technology to optimize performance, safety, life and weight when compared
to traditional or competing aircraft batteries. The design of the battery includes detailed focus on
key electrical, mechanical, and software elements that combine to provide exceptional
performance and safety that meets and exceeds the latest regulatory and industry standards. The
TB40 is a complete battery solution providing significant value and benefit to an aircraft designer,
owner and operator.
Key features of the TB40 include real-time state of charge and capacity reporting, programmable
battery parameters configurable to individual installations, and maintenance-free operation with on-
condition end of life. Multiple safety protections, continuous data monitoring, and an on-board
status indicator also add value, reliability, and reduced cost of ownership for the life of the product.
The TB40 requires professional use and minimal service to deliver maximum performance and
value as designed. This manual contains information related to the specifications, installation,
operation, storage, scheduled service and other related topics associated with the proper care and
use of this product.
1.2 PHYSICAL ATTRIBUTES
The TB40 is a single, integrated component contained in a metal enclosure with multiple interface
connections. There is a primary 2-pin, industry standard mil-spec quick disconnect power
receptacle, an 18-pin circular communications connector, and a threaded grounding location. A
USB service port and an integrated push-button status indicator with LED indicators are available
for ground operations as well. The lid of the enclosure includes two hold-down features on either
side to support typical aircraft mounting. A handle integrated into the lid of the enclosure provides
ease of lifting and carrying for installation, removal and transport. The 1.50 inch diameter vent port
can be located on either the front or left side of the unit for an exhaust connection that directs any
released emissions appropriately.
