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Part# 11-03879
MFR Model# RG-25


Recombinant Gas - The RG Series are low resistance, valve regulated lead acid (VRLA) batteries.

  • Superior starting power
  • Reliable essential power in the event of a generator failure
  • Low impedance design
  • Battery is constructed with non removable vent valves
  • No addition of electrolyte or water ever required for this maintenance free aircraft battery.
  • Aerobatic Batteries: This is a non spillable battery at any altitude or attitude
  • Factory tested to assure airworthiness
  • Shipped fully charged and ready to install
  • AGM Battery: Manufactured with absorbed glass mat separators
  • RG Series batteries ship non-HAZMAT

NOTE: This aircraft battery is not designed or intended for turbine aircraft engine starting applications. Warranty coverage applies to reciprocating aircraft engine starting, and standby / essential power installations.

*NOTE* - The STC for some aircraft is available at an additional cost please call 877-4-SPRUCE (777823) if applicable to your aircraft.

Battery Type
Ampere Hours
Max. Weight
Our P/N
Battery Diagram PDF
Sealed Lead Acid
22.75 lbs.


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Great Battery. Came delivered in excellent packaging, timeliness and with a full charge. Lycoming O-360 started right up.

Michael M
May 4, 2020

Great battery .. purchased as a replacement for the current RG-25 after good experience with Concord. Very satisfied with unit and Spruce had it shipped in 2 days.

Jeffrey J
May 2, 2020

Concorde RG-25 last one lasted 5 years, hope this does also!

April 11, 2020

As always, battery was delivered promptly. Thanks Aircraft Spruce.

March 19, 2020

Emailed the order...showed up in a couple of days....problem inconvenient trip to buy one locally

Phil K
March 16, 2020

Great battery, last one made it 5.5 years. Ordering from ACS was very efficient, got it two days later.

John H
March 13, 2020

Great Price and Fast Shipping!

Michael D
February 27, 2020

Filled order the same day. Received the next day. Great service!

John D
January 16, 2020

Good service

Steven S
December 20, 2019

I have purchased these over the competition because of their higher cold cranking amps.

November 30, 2019


Q: What are the dimensions of the Concorde RG-25 battery?

We have added a tab titled Dimensions to the web page. Please review the drawing there.

Q: Are the terminals on the Concorde RG-35 Battery 5/16"?

The terminals are 8mm, which is a little larger than 5/16".

Q: What is the warranty period on RG 25

The Gill RG series when used on reciprocating aircraft has a warranty of two years. When used on turbine aircraft the warranty is one year.

Q: I just ordered the Concorde RG-25 battery. Should it be charged before installation?

All Concorde sealed batteries are shipped charged and ready for install.

Q: Is there a core credit for returning the old battery?

No, these are sold as new, outright. There is no core charge or refund associated with the purchase.

Q: Can the Concorde RG-25 be used for the Cessna 150 aircraft?

Yes, this is the correct replacement battery for the Cessna 150 aircraft.

Q: Will the Concorde RG25 fit a Cessna 120?

Yes, the RG-25 is the correct battery for the Cessna C120. You could also use the RG-25XC.

Q: Is the Concorde RG-25 the correct battery for a Piper PA 32- 260?

Yes, the RG-25 is listed as a replacement battery for the Piper PA 32-260, however, there are other batteries that will work for this aircraft, so Concorde recommends that you check the originally installed part #. The RG-25 is the replacement for original battery P/N 450-030.

Q: What are the cranking amps of the Concorde RG25? the XCplatinum has specification sheet but this does not.

RG25 has 225 CCA.

Q: I dont see the Piper PA-16 on the eligibility list for the RG-25. I currently have a Gill G25 installed so it should fit.

Yes, the RH-25 replaces the Gill G25 in application.