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Part# 11-11312
MFR Model# 7035-28


  • The 7035-28 is a “sealed lead acid battery upgrade” to the popular Gill® G-35
  • Maintenance Free – Shipped Fully Charged and No Electrolyte or Water Required
  • Non-Spillable and Proven for Aerobatic Maneuvering
  • 2 Year Factory Warranty After Installation
  • Robust Starts, Higher Residual Power & Faster Re-Charge Times
  • First Capacity Check Not Required Until 18 Months/1800 Hours
  • Cost Competitive and Best Shelf Life in Lead Acid Chemistry
  • Advanced Valve Regulated Lead Acid (VRLA) Design
  • FAA/PMA Approved, TSO Authorized and Tested to DO-160E
  • LT® Series Batteries Are Fully Recyclable
  • LT® Series Batteries Ship Hazmat Exempt
Start strong with the Gill® 7035-28 for your 12V piston powered Cessna, Beechcraft, Piper, Maule, Mooney, American Champion, CPAC, and Alexandria aircraft. See the application chart to locate your aircraft and review your battery options.

Battery Type Voltage Amp Hours 30 Minute Capacity Weight (Lbs.) Battery Diagram PDF
7035-28 12 28 45 30 Download Full Battery

Application Guide

Manufacturer Model PMA SUP. #
Alexandria Aircraft 17-30, 17-30A, 17-31, 17-31A, 17-31TC, 17-31ATC 57
American Champion 7GCAA, 7GCBC, 7KCAB, 8KCAB 57
Beech / Beechcraft 19, 23, 24, 33, 35, 35 Bonanza, 36, 50, 76 11, 57
Cessna 180, 182, 185, 188, 190, 195, 206, 207 210 Series 57
Cessna 177, 177A, 177B, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 185, 185A, 185B, 185C, 185D, 185E, A185E, A185F, A188A, A188B, 190, 195, 195A, 195B, 206, P206, P206A, P206B, P206C, P206D, P206E, U206, U206A, U206B, U206C, U206D, U206E, U206F, U206G, 207, 207A, T207, T207A, 210, 210B, 210C, 210D, 210E, 210F,210G, 210H, 210J, 210K, T210F, T210G, T210H, T210J, T210K, T210L, T210M , T210N , T210R 57
CPAC, Inc. 112, 112B, 112TC, 112TCA, 114, 114A 57
Globe GC-1A, GC-1B 57
Hawker Beechcraft 19A, B19, M19A, 23, A23, A23A, A23-19, A23-24, B23, C23, A24, A24R, B24R, C24R, E33, E33A, F33, F33A, F33C, G33, 35, 35-33, 35-A33, 35-B33, 35-C33, 35-C33A, A35, B35, C35, D35, E35, F35, G35, H35, J35, K35, M35, N35, P35, S35, V35, V35A, V35B, 36, A36, A36TC, B36TC, G36, 76 57
Maule M-4-180V, M-5-180C, M-5-235C, M-6-180, M-6-235, M-7-235, M-7-235A, M-7-235B, M-7-235C, M-7-260, M-7-260C, M-8-235, MT-7-235, MT-7-260, MX-7-160, MX-7-160C, MX-7-180, MX-7-180A, MX-7-180B, MX-7-180C, MX-7-180 AC, MXT-7-160, MXT-7-180, MXT-7-180A 56
Mooney M20, M20A, M20B, M20C, M20D, M20E, M20F, M20G, M20J, M20K 57
Piper PA-18, PA-18A, PA-18S, PA-18S"125", PA-18A"135", PA-18S"135",PA-18"150", PA-18A"150, PA-20, PA-20S, PA-20"115", PA-20S"115", PA-20"135", PA-20S"135", PA-22, PA-22-108, PA-22-135, PA-22S-135, PA-22-150, PA-22S-150, PA-22-160, PA-22S-160, PA-23, PA-23-160, PA-23-235, PA-23-250, PA-24, PA-24-250, PA-24-260, PA-24-400, PA-28-140, PA-28-150, PA-28-151, PA-28-160, PA-28-161, PA-28-180, PA-28-181 PA-28-201T, PA-28-235, PA-28-236, PA-28R-180, PA-28R-200, PA-28R-201, PA-28R-201T, PA-28RT-201, PA-28RT-201T, PA-30, PA-32-260, PA-32R-260, PA-32-300, PA-32R-300, PA-32-301, PA-32R-301, PA-32-301T, PA-32R-301T, PA-32RT-300, PA-32RT-300T, PA-34-200, PA-34-200T, PA-36-375, PA-39, PA-44-180, PA-44-180T 57
Piper PA-18, PA-22, PA-23, PA-24, PA-25, PA-28, PA-30, PA-32, PA-34, PA-39 18, 57


  • Voltage: 12V
  • Type: Sealed
  • Weight: 28
  • 1 hr (C1) 28
  • 30 min (2C) 45
  • Electrolyte: Not Needed


  • Customers Also Viewed
  • Frequently Purchased With
  • Accessories


Very pleased with this new sealed Gill battery. Recommended by my A&P. Solved my planes starting issues.

Doug F
August 29, 2019

Arrived quickly and in good condition and charge. Taller than original G35 battery by 1/4 inch which prevented box top from setting evenly.

Kevin S
July 19, 2019

Delivered in 3 days and free shipping. Got me back in the air fast. Great service and great product.

Buoy M
July 18, 2019

As advertised and arrived fully charged. Great battery. My last one lasted over 5 years. I just wish I knew how to properly dispose of the old one.

Bill H
April 26, 2019

Sealed!!!!!!!! no Leaky

Ron T
January 21, 2019

as far as providing the needed voltage, So far so good. Battery installation was quick and easy. It fit perfect in the PA28-180 battery box with no problems

December 16, 2018

No more acid leaks! This has been a great battery think I’ve had it for about three years and I don’t even use a charger on it and always cranks up . I live in the mid Atlantic states which gets pretty cold during the winter. I will buy this again when I need a replacement !

October 21, 2018

Battery arrived promptly and well packaged. Battery is supplied with threaded posts in terminals that can be replaced with bolts. Allen wrench is supplied to removed studs. Battery was installed in a 1979 Piper Warrior with original fiberglass battery box. Using a flat washer, lock washer, and two-eared retaining nut it was found that the nut would barely thread on to the stud to fasten the battery cable. Did not attempt to raise the threaded stud to gain more threads - used thinner flat washers. Then, when securing battery box cover, it was found that due to the increased height of the battery the cover now fit very tightly over the top of the battery, especially at the rear. Should be no battery movement at all. I have used Gill batteries exclusively. The first two (lead acid) lasted 7 years each. I tried the previous iteration of a VR (maintenance-free) battery but it lasted less than 2 years (and the Gill rep I spoke with admitted it was not a very long-life battery). The last lead-acid battery, which this maintenance-free battery is replacing, also lasted only 2 years.

Jeff O
June 9, 2018

Bought this as a replacement for the same type battery that was getting weak after five years. Immediate improvement in starting power.

Billy B
June 6, 2018

Bought this to replace my Gill G35 battery that died after 4 years even with a battery tender all the time the ‘plane wasn’t flying. Hoping for better life out of this one. The Aircraft Spruce team were great (as always 😊)

Geoff S
April 8, 2018


Q: Are the Gill 35 and 35S batteries the same size in width, height, and length? I need to replace a Gill 35 that fits in a very tight battery box. I want a Gill 35S battery, but I need to confirm that it will fit in the installed battery box. Please confirm. Howard

Yes, the G-35 and the G-35S have the same dimensions. You can confirm this by pulling up the drawing on each battery, which is referenced as an additional image. It can be difficult to see as it is white on white, but if you mouse over the image to the right of the primary image, you will see the drawing which you can then enlarge.

Q: Is there a core refund for Gill Batteries?

No, there is no core fee charged at the time of purchase and no core refund after purchase. All batteries are sold as new replacements.

Q: Is the new G-35S sealed battery (7035-28) still non-spillable and considered non-hazardous material for shipping?

Yes, that is correct. It is sealed and considered non-hazardous for shipping purposes.

Q: Is this an AGM or GEL type battery?

Per the manufacturer: All Gill LT sealed batteries are AGM.

Q: What is the cold cranking amps for a Gill 7035-28 battery?

Gill stopped measuring in cold cranking amps as this in an automotive term. They are now using IPP and IPR. IPP is rated at 1,599 amps and IPR is rated at 1,088 amps.

Q: how many amps and how many cold cranking amps does this battery have?

The Gill 7035-28 battery (11-11312) is a 28 amp battery. Cold cranking is an automotive term, aircraft use IPP which is 1,599 amps.

Q: Can the Gill 7035-38 battery be used as a replacement for the G35?

Yes, this can be used as a replacement for a Gill G35 battery.

Q: Can the Gill 7035-28 battery replace the Concorde RG-35AXC in my 1973 Piper Cherokee Challenger? I can validate the dimensions per drawing but I cant see the terminals in drawing if they will match my aircraft like Concord battery

Yes, part # 11-11312 is a direct replacement for a RG-35AXC.

Q: Which battery minder do you recommend with the Gill 7035-28 battery?

You can use P/N# 11-07742 or P/N# 11-09985 for the 7035-28 battery. See Accessories.

Q: Does the Gill LT 7035-28 sealed battery come fully charged?

Yes, this battery ships fully charged.

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