Battery Tester / Charger

Part Number
Model Number
Mx TT28-2
Lamar Technologies
Technical Description
True Blue Charger Mx, Direct Connect, fully automatic, 2.5 amp battery charger
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Purchase Type
New Outright No core return required
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Product Description

Charge and maintain lithium-ion and lead-acid aircraft batteries with the intelligent and compact TT28-2 True Blue Charger Mx. Designed to be MS3509 compatible, this intelligent True Blue Charger extends battery life and provides simple, safe and automatic charging for lithium-ion and sealed lead-acid aircraft batteries.

Benefits and Specifications
  • Charges and maintains sealed lead-acid and all True Blue Power lithium-ion aircraft batteries:
    TB17* (17 amp-hour) TB40 (40 amp-hour)
    TB20 (20 amp-hour) TB44 (46 amp-hour)
    TB30 (30 amp-hour) TB60 (60 amp-hour)
  • Power Output: 2.5 amps charge current limit
  • Alphanumeric LCD display provides battery voltage and indications
  • Charge, Ready and Fault LED indicators
  • Continuously monitors and charges to maintain a quick-ready state
  • One-year limited warranty

* Quick disconnect required

Input Voltage
90 – 264 VAC, ±10%
47 – 63 Hz
1A (maximum)

Input Connector

Battery Charge Voltage
Lithium-ion 28.8V (maximum)
Lead-acid 28.6V (maximum)

Operating Temperature
-20°C to +50°C (-4°F to +122°F)

Storage Temperature
-28°C to +70°C (-18°F to +158°F)

Timing Accuracy
±5% of nominal time

Display Accuracy
±0.2 volts

2 lbs (0.9 kg)

4.33” W x 5.9” H x 3.8” D

Battery Connector
MS-3509 compatible

Protection and Monitoring
Overcharge and over-temperature protection

Internal timer automatically monitors open-circuit voltage to determine top charge

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