1-800-827-3232
Find Your Battery
2 YR WARRANTY
High Cranking Amps
Cranking & Starting Batteries
Starting power in lithium, AGM and flooded lead-acid — sized to turn outboards, inboards and utility engines over on the first try.
Starting Power
Lithium, AGM and flooded cranking batteries in standard group sizes.
- 18 MONTH WARRANTY
- 10 YR WARRANTY
- 10 YR WARRANTYBLUETOOTH
- 10 YR WARRANTYBLUETOOTH
- 2 YR WARRANTY
- 10 YR WARRANTY
- 18 MONTH WARRANTY
- 18 MONTH WARRANTY
- 10 YR WARRANTYBLUETOOTH
- 2 YR WARRANTY
- 1 YR WARRANTY
- 1 YR WARRANTY
- 1 YR WARRANTY
- 1 YR WARRANTY
- 1 YR WARRANTY
- 1 YR WARRANTY
- 1 YR WARRANTY
- 1 YR WARRANTY
- 1 YR WARRANTY
- 2 YR WARRANTY
- 2 YR WARRANTY
Cranking Amps First
The One Job It Cannot Fail
A starting battery does one thing: deliver a very large current for a very short time. Match or exceed the cranking rating your engine calls for, get the group size right so it sits properly in the tray, and it will do that job for years.
45 Years of Expertise
Dependable battery solutions since day one
Standard Group Sizes
Sized for the tray you already have
Warranty-Backed
Coverage terms listed on every product page
US-Based Battery Experts
Talk fitment before you buy
First Turn of the Key
Talk to a battery expertStarting Power by Chemistry
Lithium for weight, AGM for sealed simplicity, flooded for value.
- 10 YR WARRANTYBLUETOOTH
- 10 YR WARRANTYBLUETOOTH
- 10 YR WARRANTY
- 10 YR WARRANTYBLUETOOTH
- 2 YR WARRANTY
- 18 MONTH WARRANTY
- 2 YR WARRANTY
- 18 MONTH WARRANTY
Compare Starting Batteries
Because our customers shop by the numbers.
| Model | Voltage | Capacity | Group Size | Best For | Price |
|---|---|---|---|---|---|
| 12V 1150MCA Group 31 AGM Starting Battery | 12 | — | 31 | Highest marine cranking amps we stock | $423.95 |
| 12V 390CCA Group U1 LiFePO4 Starting Battery | 12 | 3AH | U1 | Light, high-crank lithium | $119.99 |
| 12V 935MCA Group 24 AGM Starting Battery | 12 | — | 24 | Group 24 sealed starting power | $327.95 |
Frequently Asked Questions
Choosing the Right Battery
How many cranking amps do I need?
Match or exceed the figure your engine manufacturer specifies — more is never a problem. Each product page lists the cranking rating so you can compare directly against the battery you are replacing.
Can I use a deep cycle battery to start my engine?
Only if it is rated for it. A true deep cycle battery is built for steady current, not a high burst. If you need one battery to do both jobs, use a dual purpose battery instead.
How do I know which group size I need?
Group size describes the case dimensions and terminal layout, not the capacity. Match the group size stamped on your current battery — every product page lists the group size and dimensions so you can confirm it fits the tray you already have.
Charging & Maintenance
Why did my starting battery die over the winter?
A lead-acid battery left partly charged through cold storage sulfates and loses capacity permanently. Keep it on a maintainer, or move to lithium, which sits through an off-season without the same damage.
Warranty & Support
What warranty comes with these batteries?
Terms vary by product line — the term for each battery is listed on its product page, and the full details are on our Warranty Information page. Register your battery online after purchase to activate coverage.
What if I am still not sure which one to buy?
Call our US-based battery team on 1-800-827-3232 before you order. Tell us the machine, the tray you are working with and how long you need to run between charges, and we will point you at the right part number, or message us.
Start It Every Time
Match cranking amps and group size, or let our team confirm the fit before you order.