p/n 725.0002 REV 3.0
© 2023 TCW Technologies, LLC.
14
SPECIFICATIONS:
IBBS-12v-3ah-CRT-V
Certification:
TSO-C179(b) class A-3B
(see
https://www.tcwtech.com/wp-content/uploads/2022/01/TSO-C179b-testing-statement_IBBS-
for TSO testing data information)
Input Voltage*
13.7-15 volts DC for battery charging.
Transition Voltage**
10.5-11.5 volts
Input Current:
1.8 amps on main input for charging
0.7 amps for battery heating at low temps
Pass-thru Current:
5 amps continuous, 10 amps peak (30 seconds)
Output Voltage:
10-14 volts DC during back-up operation
Output Current:
5 amps continuous
10 amps peak for radio transmissions 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 Protection:
34 volt active clamp, 1500w 10/1000uS waveform
Wiring:
15 pin male D-sub on product.
Enclosure:
Aluminum 11.92 x 3.3 x 3.2 inches
Weight:
3.25 lb
Temperature range:
Operating: -40 C° to 60 C°
Charging: -40 C° to 40 C°
Connector:
Standard density 15 pin D-sub, male on product
Note: Input voltages in excess of 18 volts or reverse polarity may damage unit
*minimum input voltage to start a charge cycle is 13.7 volts, this ensures aircraft alternator is running prior to
starting a charge cycle.
**transition voltage is the voltage level on the input (pin 5) that causes the system to provide output power via the
internal back-up battery
