True Blue Power

True Blue Power Gains EASA STC for Lithium Emergency Power Supply

FRIEDRICHSHAFEN, Germany — The European Aviation Safety Agency (EASA) has awarded True Blue Power the Supplemental Type Certificate (STC) for the TS835 Series Lithium Emergency Power Supply (EPS) for Beechcraft King Air 200 and 300 models.

The TS835 Series Emergency Power Supply is the first lithium iron phosphate battery to gain STC approval by EASA for Beechcraft King Air 200/300 aircraft. The ETSO C179a-certified battery provides 24.5 VDC power for critical and standby equipment and maintains full capacity by recharging during normal flight operations. The battery's sophisticated lithium iron phosphate technology offers considerable advantages over lead-acid chemistry, including a 63 percent weight savings, which contributes to payload efficiency. The improved life expectancy easily outlasts the legacy lead-acid battery's three-to-four year replacement schedule.

True Blue Power, a division of Mid-Continent Instrument Co., Inc., teamed up with GAMA Engineering Ltd. And Adams Aviation Supply in the United Kingdom to secure the STC. GAMA Engineering performed the installation certification and Adams Aviation Supply has been named the European distributor of the TS835 Series to King Air operators and service centers in that region.

“The STC will greatly benefit the King Air operators in Europe. It offers an easy-to-install, lower-cost-of-ownership option for their standby battery requirements,” explained Tom Genovese, director of sales for True Blue Power. “We worked closely with GAMA Engineering and Adams Aviation Supply to develop a certification that would benefit a large number of operators and determined the King Air 200/300 was the best platform for this project.”

The TS835-1 is a direct replacement for the Beechcraft King Air 200/300’s original J.E.T. PS-835 lead-acid battery. The TS835-1 utilizes the same mounting rack, connector, wire harness and flight deck OFF/ARM/TEST switch. In most cases, the installation simply requires removing the original battery and inserting the TS835 into the existing 1/4 ATR mounting rack.

The TS835 Series Emergency Power Supply will be on display at the Adams Aviation Supply exhibit #A5-103 at Aero Friedrichshafen in Friedrichshafen, Germany April 24-27.

About True Blue Power®

True Blue Power®, a division of Mid-Continent Instrument Co., Inc., specializes in the custom design and manufacture of power solutions for the general aviation industry. Select products feature advanced, lithium iron phosphate battery technology, which offers stable chemistry, faster charging, consistent output, excellent cycle life and superior cost performance — this translates into smaller, lighter products that are less than half the size and weight of existing solutions. For more information, visit

About GAMA Engineering, Ltd.

Gama Engineering is a leading provider of aviation services ranging from regular maintenance tasks, fault diagnosis and repair, to minor and major equipment upgrades. The company’s reputation for excellence in the field of fixed and rotary wing is attributed to an engineering team that provides the highest level of quality workmanship in compliance with the most stringent international regulatory requirements. For more information, visit

About Adams Aviation Supply

Adams Aviation Supply is Europe’s largest distributor of parts and accessories for general and business aviation. A full range is available to qualified trade customers, with globally competitive prices, quantity breaks and price-sensitive alternatives, all without hidden extras. Adams Aviation Supply offers market-leading traceability with the goods at no extra charge, along with same-day dispatch for next-day delivery across Europe, or via consolidated shipments. The company has EASA 145 approval and carries over 130 must-have product-lines, offered by experts for each product-type and with–of course–aviation in your language. After all, they are Europe’s plane speaking people. For more information, visit