Honda Generator Batteries

Reliable Power for Your Honda Generator

Honda generators are legendary for their reliability, but even the best engine won't start without a healthy battery. Whether you are powering a remote job site with an EB series, backing up your home with an EM model, or enjoying the quiet performance of an EU3000is, Battery Mart provides the high-quality AGM (Absorbed Glass Mat) batteries you need to ensure an instant start every time.

Why Choose Battery Mart for Your Honda? Our replacement batteries are engineered to meet or exceed OEM specifications. We focus on providing:

  • Maintenance-Free AGM Technology: No more checking acid levels or worrying about leaks.
  • High Cranking Amps: Reliable starting power even in cold weather.
  • Vibration Resistance: Built to withstand the constant movement of a running generator.
  • Precision Fit: We match the exact dimensions and terminal configurations for a "drop-in" installation.

Not sure which battery your Honda needs? Check your model number against our compatibility list below or contact us for expert service.

Reliable Power for Your Honda Generator

Honda generators are legendary for their reliability, but even the best engine won't start without a healthy battery. Whether you are powering a remote job site with an EB series, backing up your home with an EM model, or enjoying the quiet performance of an EU3000is, Battery Mart provides the high-quality AGM (Absorbed Glass Mat) batteries you need to ensure an instant start every time.

Why Choose Battery Mart for Your Honda? Our replacement batteries are engineered to meet or exceed OEM specifications. We focus on providing:

  • Maintenance-Free AGM Technology: No more checking acid levels or worrying about leaks.
  • High Cranking Amps: Reliable starting power even in cold weather.
  • Vibration Resistance: Built to withstand the constant movement of a running generator.
  • Precision Fit: We match the exact dimensions and terminal configurations for a "drop-in" installation.

Not sure which battery your Honda needs? Check your model number against our compatibility list below or contact us for expert service.

EM3800SX

EM4000S

EM4000SX

EM5000iS

EM5000S

EM5000SX

EM5000SXK2

EM65000SXK1

EM6500S

EM6500SX

EM6500SXK1

EM6500SXK2

EM7000is

EMS4000

EMS4500

ES6500

EU1000i

EU2000i Camo

EU2000i Companion

EU2000i

EU3000

EU3000i Handi

EU3000is

Next Generation EU6500 Portable

EU6500is

EU65500is

EU7000is

EX4000

EX4500

Motobatt MBTX20UHD 12V 320CCA AGM Battery

Item #: BM-MBTX20UHD
 
Voltage: 12 Volt / 21 Ah / 320 CCA
• AGM
• Dimensions: 6.89" / 3.43" / 6.1"
• Weight: 15.00 lbs
• Warranty: 1 Year
Price:
$124.95
Price: $124.95
QTY:

Deka Dominator 8GU1 Group U1 Gel Battery [12V, 32Ah]

Item #: GEL-8G-U1
 
Voltage: 12 Volt / 32 Ah
• Gel
• Dimensions: 8 5/16" / 5 1/8" / 7 1/4"
• Weight: 26.00 lbs
• Warranty: 12 Month
• See All Compatible Models
Price:
$172.95
Price: $172.95
QTY:

DEKA Intimidator 9A51RT Group 51R AGM Battery

Item #: SLA-9A51R
 
Voltage: 12 Volt / 46 Ah / 500 CCA
• AGM
• Dimensions: 9.31" / 5.00" / 8.63"
• Weight: 31.50 lbs
• Warranty: 30 Month
• See All Compatible Models
Price:
$224.95
Price: $224.95
QTY:

Antigravity AG-ATZ10-RS RE-START Lithium Powersport Battery

Item #: AG-ATZ10-RS
 
Voltage: 12.8 Volt / 10 Ah (Pb Eq) / 360 CCA
• LiFePO4
• Dimensions: 5.9" / 3.46" / 3.62"
• Weight: 4.00 lbs
• Warranty: 3 Year Factory Direct - Warranty Info (PDF)
Price:
$224.99
Price: $224.99
QTY:

Odyssey ODS-AGM8E Extreme Powersport Battery (PC310)

Item #: PC310
 
Voltage: 12 Volt / 7 Ah / 100 CCA
• AGM
• Dimensions: 5.43" / 3.39" / 3.98"
• Weight: 6.00 lbs
• Warranty: 2 Year (Warranty Info)
MSRP: $312.99
Price:
See Best Price in Cart
QTY:

Dakota Lithium Group U1 12 Volt, 46 Ah LiFePO4 Deep Cycle Battery

Item #: DLITH-12V46   |  Currently Unavailable: Returning Q4
 
Voltage: 12.8 Volt / 46 Ah
• LiFePO4
• Dimensions: 7.6" / 5.1" / 6.8"
• Weight: 10.50 lbs
• Warranty: 11 Year (Factory Direct)
Price:
$399.00
Price: $399.00
QTY:

Frequently Asked Questions: Honda Generator Batteries

Which Honda generators require a battery?

Only Honda generators equipped with an Electric Start feature require a battery. This includes popular models like the EU3000is, EU7000is, and most models in the EM and EB series. Smaller portable units like the EU1000i or EU2200i are recoil-start only and do not use a battery.

What is the most common battery for the Honda EU3000is?

The Honda EU3000is typically uses a 12V 8Ah or 9Ah battery. The industry-standard part number is often a YTX9-BS or equivalent. This battery is sized specifically to fit the compact internal battery compartment of the inverter unit.

How do I make my Honda generator battery last longer?

Generator batteries often fail because they sit idle for long periods. To extend your battery's life:

  1. Use a Battery Tender: Connect a float charger during the off-season to prevent deep discharge.
  2. Exercise the Generator: Run your generator once a month for 15–20 minutes to allow the internal charging circuit to top off the battery.
  3. Clean the Terminals: Ensure the nut-and-bolt connections are tight and free of corrosion.

Does my battery come fully charged?

Most of our Honda replacement batteries are shipped factory-activated and fully charged. However, we always recommend testing the voltage or placing the battery on a charger for a short period before the first use to ensure it is at peak performance.