Battery Tester / Charger

Part Number
Model Number
Mx TT28-2
Lamar Technologies
Technical Description
True Blue Charger Mx, Ring Connector Direct Connect, 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. Featuring a ring terminal battery connector, this 2.5 amp charger maintains batteries of any capacity, from zero to full state-of-charge, while displaying battery voltage.

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

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

1.1 lbs (0.5 kg)

4.5” W x 4.5” H x 2.5” D

Battery Connector
Ring Terminal

Protection and Monitoring
Overcharge and over-temperature protection

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

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