True Blue Power

Emergency Power Supply/24.5 Vdc, 4.5 amp, Lithium. MD835-1

P/N MD835-1

NE — New Condition disclosed

Condition NE — Condition disclosed — is shown up front on this listing, along with the exact price, current availability, and what certification paperwork ships with the part, so you can confirm fit and airworthiness before you buy. Full specifications and answers to common questions are below.

Stocked & sold by AAP

What does “New” condition mean?

$5,734.64

On backorder

UOM EA · MOQ 1

Paperwork shown up front · 30-day returns · secure checkout

Request certification documents (8130-3 / EASA Form 1 / C of C)

Description

EMERGENCY POWER SUPPLY/24.5 VDC, 4.5 amp, Lithium. MD835-1TS835 Emergency Power Supply | 24.5 VDC at 20A output, 4.5 amp-hour

The TS835 Emergency Power supply features advanced Nanohosphate® lithium-ion cell chemistry to offer reduced weight, maintenance costs, and improved 10-year life expectancy over lead-acid batteries.

This TS835 emergency power supply (Alternate Part# TS835):

24.5 VDC at 20A output
4.5 amp-hour capacity

Features:

Automatically provides 24.5 VDC power for critical or standby power
4.5 amp-hour Nanophosphate® lithium-ion battery
Uses advanced NanoPhosphate® lithium-ion technology
Maintains full charge by recharging during normal flight operations
Lightweight â€” Only 4.8 lb
Direct replacement for L-3 Avionics/JET PS-835 or PS-855 using the same rack mount and connector
Two-year maintenance schedule
10-year life expectancy
Part 23 AML STC certified
Designed and built in Wichita, Kansas USA

Product Codes
Mfr Part No:	MD835-1

Hazmat charges may apply

Weight: 4.8 lb Dimensions: 3.1 x 12.7 x 2.4 in Model Number: TS835-1 Capacity: 4.5 Ah, nominal Input Voltage: 24 VDC â€“ 32 VDC at 7A, maximum Output Power: 24.5 VDC at 20A, maximum Protection: Factory replaceable fuse Mating Connectors: DPXB13-33S-0001 (MCI P/N 9016600-2 or 9016600-5) Rack Mount Installation: 1/4 ATR rack (MCI P/N 5120-107-C01) Optional Vent Kit: MCI P/N 9017983 Remote Test Switch: Remote-mounted self-test switch required, MCI P/N 9017176 or equivalent Case: Anodized aluminum, blue Certification: FAA TSO C179a certified EASA ETSO C179a certified ANAC TSO C179a certified Part 23 AML STC certified RTCA/DO-160F qualified RTCA/DO-311 qualified

Specifications

Part number	MD835-1
Manufacturer	True Blue Power
Condition	NE
Airworthiness	Condition disclosed
Country of origin	—
Lead time	days

Frequently asked

Does the Emergency Power Supply/24.5 Vdc, 4.5 amp, Lithium. MD835-1 include certification paperwork?

This item is supplied as "Condition disclosed" rather than with full 8130-3 traceability — normal for some condition codes, and it does not mean the part is unusable, only that the paperwork profile differs. Check the listing for exactly what documentation is included, and request any available records before you purchase if your installation requires them.

What condition is this part?

This part is listed in condition NE — Condition disclosed. Condition codes describe how a part reached its current state (for example new, overhauled, serviceable, repaired, or as-removed) and directly affect what paperwork ships with it and how it should be installed. See the Glossary for the full definition of every condition code we use.

How fast does it ship?

This item is currently on backorder, meaning demand has temporarily outpaced our stock and a new shipment is inbound from the manufacturer or our supplier. Request a quote and we will confirm the current estimated delivery window before you commit. If your aircraft is grounded, AOG expedited handling is available on request.

Can I return it?

You may return this item within 30 days of delivery if it is unopened, uninstalled, and in its original packaging. Items that have been installed, powered on, opened hazmat, or separated from an attached 8130-3 tag are non-returnable because their airworthiness status can no longer be confirmed once removed from the part. See our Returns policy for the full process.