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6V 300AH Group J305 / 902 Flooded Deep Cycle Battery
SKU PGD305VE
Proven flooded power, built to last.
300Ah capacity at the 20-hour rate.
Deep-cycle power in a Group J305 / 902 case.
Proven flooded lead-acid.
A serviceable design: check and top up the water from time to time.
1 Year Warranty.
Full terms are on our warranty information page.
U.S.-based support.
Battery expertise since 1980, with a team you can call.
Available through your dealer
This battery is sold through our dealer network. Call and we will point you at the closest one.
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Pro-Guide Deep Cycle Batteries: Power You Can Rely On
Designed for the toughest applications, the Pro-Guide Deep Cycle Battery Line delivers reliable power for your golf, RV, off-grid, motive needs. Engineered with advanced technology and robust construction, Pro-Guide batteries provide exceptional durability, extended service life, and consistent performance.
Whether you’re navigating the golf course or powering your off-grid cabin, Pro-Guide Deep Cycle Batteries are the dependable solution that keeps you going when it matters most.
- Multiple Sizes & Configurations: Available in various amp-hour ratings and sizes to suit a range of applications, from small to large appliances and heavy equipment.
Will it fit your setup?
Three quick checks before you order: your tray size, your cable connections and your charger. Everything you need is below.
Dimensions
- Length
- 12 7/16in / 315.9mm
- Width
- 7 1/8in / 181mm
- Height
- 14 5/8in / 371.5mm
- Group size
- J305 / 902
Measure your battery tray or the battery you are replacing. If your tray takes a Group J305 / 902 battery this size, it drops in with no tray modification needed.
What you'll need to install
A Group J305 / 902 tray or battery box
Secure the battery so it can't shift in use.
Your existing battery cables
Reuse them if the cable ends fit the battery's terminals.
A lead-acid charger
Use a charger with a standard flooded lead-acid profile.
Basic hand tools
A wrench or socket for the terminal hardware.
Still not sure? Our US-based team will check it with you. 1-800-827-3232
- Backed by 45 years of battery expertise and US-based support you can actually reach.
- 12 Month Free Replacement Warranty.
| Voltage | 6 |
|---|---|
| BCI Group Size | J305 / 902 |
| Capacity @ 20-Hr Rate | 300 @ 20-Hr Rate |
| Cold Cranking Amps | N/A |
| Length (in/mm) | 12 7/16in / 315.9mm |
| Width (in/mm) | 7 1/8in / 181mm |
| Height (in/mm) | 14 5/8in / 371.5mm |
| Weight (lbs/kg) | 92lbs / 41.7kg |
Warranty
12 Month Free Replacement Warranty.
Register your battery online to activate coverage. Full terms are on the warranty information page.
Downloadable Resources
Engineered for Extreme Heat & Cold
Wide Temperature Range
Low Self Discharge, Ready When You Are
Exceptional Charge Retention
Long-Term Reliability:
Power That Doesn't Quit
Providing reliable batteries since 1980:
Innovating Power for 45 Years.
ProGuide Lead-Acid vs Other Batteries
Frequently Asked Questions
What is a flooded deep-cycle battery best used for?
Flooded deep-cycle batteries are designed for applications requiring repeated discharge and recharge cycles, including marine, golf cart, RV, industrial and utility applications.
Do flooded batteries require maintenance?
Yes. Electrolyte levels should be periodically inspected and the battery should be kept properly charged. Follow the maintenance instructions for the specific battery.
How can I check the battery's state of charge?
State of charge can be checked using resting voltage. On serviceable flooded batteries, specific gravity can also be measured with a hydrometer for a more detailed indication of charge.
How should a flooded battery be stored?
Fully charge the battery before storage and periodically check its charge level. Flooded batteries naturally self-discharge over time and should not be allowed to remain discharged for extended periods.
Can flooded batteries be mounted on their side?
No. Flooded lead-acid batteries contain liquid electrolyte and should remain in their specified upright operating position.