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p/n 725.0001  REV 3.0 

 

     © 2023 TCW Technologies, LLC. 

 

 

 

Integrated Back-up Battery System 

 

Model:  IBBS-12v-6ah-CRT-V  

 

 

 

 

 

 

 

  The 

Integrated Back-up Battery System

IBBS

,

 is an electronic 

system that combines a Lithium-Iron-Phosphate (Li-Fe-PO4) battery 
pack, a charger and switching logic in one convenient package.  The 
IBBS provides an engineered solution to enable an endurance bus for 
critical loads found in aircraft. It simplifies the wiring and installation of 
a source of back-up power by integrating all of the key elements in a 
single enclosure.  The 

IBBS

 system provides back-up power to critical 

electronic loads such as EFIS, GPS, Autopilots, Radios, Electronic 
Ignition systems and engine monitor systems.    

 
  Integral to the IBBS is a lithium-iron-phosphate battery pack and a 

matched charging system to ensure the battery is properly charged 
and maintained.  The system also includes switching circuitry to 
provide a stable source of output power during normal and emergency 
operations.  The IBBS system also provides signals to other equipment 
such as EFIS systems to communicate the operating state of the main 
aircraft bus as well as the state of the battery. 

 

Summary of Contents for IBBS-12v-6ah-CRT-V

Page 1: ...by integrating all of the key elements in a single enclosure The IBBS system provides back up power to critical electronic loads such as EFIS GPS Autopilots Radios Electronic Ignition systems and engi...

Page 2: ...ilots JPI and EI engine monitors SureFly electronic ignitions Lycoming EIS electronic ignitions and ElectroAir electronic ignitions IBBS must be installed using the current aircraft standards and prac...

Page 3: ...mance Specifications and potential limitations and ratings under various conditions including environmental and application installations See Item 3 below for installation location limitations Install...

Page 4: ...rt The vent port must be routed to the bottom or side exterior of the aircraft via the vent hose Locate a suitable flat location measuring at least 3 3 x 12 in area or in an existing avionics rack for...

Page 5: ...atically transfers the load current on the output pins to the internal back up battery source Pin 5 nominal current draw is 3 3 amps during charging Pin 4 provides power to an internal battery heater...

Page 6: ...re pin 2 must have an input impedance 100k ohms otherwise it will load down pin 2 and provide an artificially low voltage reading When used with the following EFIS systems wire pin 2 to the Volts2 inp...

Page 7: ...onnection as identified in the wiring diagrams Back up Power Master This switch enables back up power from the IBBS system to be available on the output wires when power on the normal aircraft bus fal...

Page 8: ...nominal capacity 30 C 70 of effective nominal capacity 45 C 45 of effective nominal capacity Servicing The internal battery in the IBBS system is replaceable however the IBBS product must be returned...

Page 9: ...ck up battery are properly working 4 Verify the low voltage warning light is indicating a low voltage condition 5 Turn on the Aircraft Master Switch ensure the connected equipment remains energized Th...

Page 10: ...nstallation approval The internal battery is not field replaceable The IBBS unit must be returned to TCW Technologies LLC for all repair and servicing requirements Endurance testing 1 Turn off the Air...

Page 11: ...replaced with the same Part Number unit or later FAA approved revision The use of alternate models will require a new FAA installation approval The internal battery is not field replaceable The IBBS u...

Page 12: ...all pullable breakers to the normal ON position and ensure aircraft engine is properly returned to the off position by following normal run and shut down procedures 10 After completing these tests rec...

Page 13: ...s and transient load 30 second duration max Battery Internal sealed Li Fe PO4 nominal 12 8 volts Charger Integral high performance fast charger with cell balancing and thermal monitoring Surge Protect...

Page 14: ...erational Performance Standards for Rechargeable Lithium Battery Systems Environmental Qualification RTCA DO 160 g B2BBBSC1EYXXFSZB IX XXXXAZ ZC TT MA3H3L3XXAX Power input 14 volts nominal 3 3 amps ch...

Page 15: ...0 temp variation 5 Category B Humidity 6 Category B operational shock 7 Category B vibration 8 Category S curve C explosion 9 Category E waterproofness 10 Category Y fluid susceptibility 11 Category X...

Page 16: ...wiring harness View from back of connector Pin Function 5 PWR in charge sensing 2 Batt info 3 Low Volt Warn 12 Output 13 Output 14 Output 15 Output 6 Pwr pass thru input 1 Enable backup switch 9 Groun...

Page 17: ...p n 725 0001 REV 3 0 2023 TCW Technologies LLC 17 IBBS unit mounting footprint 11 16in 2 00in Mounting holes 0 188 4 plcs All dimensions in inches IBBS unit height 3 2 C G at center of all axis...

Page 18: ...aus PA USA IBBS 24V 3AH CRT V Input 22 32 volts DC Output 24 volts 5amps INTEGRATED Back up Battery SYSTEM Back up power output 20 awg Main Aircraft Bus charge sense pass thru Pin Function 15 pin Male...

Page 19: ...p Power Master Battery Info Back up power output 20 awg 22 awg 22 awg 20 awg 20 awg 20 awg 1 6 9 10 2 5 12 main power input 15 pin female Dsub connector 3 Low Voltage Warning LED NOTE Use redundant gr...

Page 20: ...Power Master Battery Info Back up power output 20 awg 22 awg 22 awg 20 awg 20 awg 20 awg 1 6 9 10 2 5 12 main power input 15 pin female Dsub connector 3 Low Voltage Warning LED NOTE Use redundant gro...

Page 21: ...designed and manufactured RETURN OR REPLACED COMPONENTS any item to be replaced under this Warranty must be returned to TCW Technologies in Emmaus PA or such place as TCW may designate freight prepaid...

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