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Garmin FishFinder 300C GPS Batteries

Whether you’re traveling across the country or just to an unfamiliar part of town, you rely on your GPS to get you where you’re going. Unfortunately, a dead GPS battery isn’t going to get you anywhere. If you’re Garmin FishFinder 300C GPS needs a new battery or you just want an extra on hand just in case, Batteries Plus Bulbs can help!

  • Guaranteed fresh for 10 years
  • Made in the USA
  • Specifically engineered for professional use
Brand: Rayovac UltraPro
Voltage: 1.5
Format: AA, LR6


  • Reliable power for all your portable devices
  • Made in the USA
  • 10 year shelf life
Brand: Werker
Voltage: 1.5
Format: AA, LR6


  • Dependable, long-lasting power
  • Guaranteed for 7 years in storage
  • Operates in extreme temperatures from -4° to 129°F
Brand: Duracell ProCell
Voltage: 1.5
Format: AA, LR6


  • Lowest cost per cell among consumer alkaline batteries
  • Proudly made in USA
  • 10 year shelf life
Brand: Rayovac
Voltage: 1.5
Format: AA, LR6

  • Long-lasting dependable power
  • Engineered to deliver the power you need for all your household devices
  • Duralock power preserve technology
Brand: Duracell Coppertop
Voltage: 1.5
Format: AA, LR6
Spend $50 or More on Duracell Batteries and get a Visa Gift Card after Mail-In Rebate


  • Bulk packaging for easy storage
  • Long-lasting dependable power
  • Engineered to deliver the power you need for all your household devices
Brand: Duracell Coppertop
Voltage: 1.5
Format: AA, LR6
Spend $50 or More on Duracell Batteries and get a Visa Gift Card after Mail-In Rebate
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  • Long-lasting dependable power
  • Engineered to deliver the power you need for all your household devices
  • Duralock power preserve technology
Brand: Duracell Coppertop
Voltage: 1.5
Format: AA, LR6
Spend $50 or More on Duracell Batteries and get a Visa Gift Card after Mail-In Rebate


  • Most advanced Duracell battery available
  • High density core for long-lasting power
  • Best for high drain/high tech devices
Brand: Duracell Quantum
Voltage: 1.5
Format: AA, LR6
Spend $50 or More on Duracell Batteries and get a Visa Gift Card after Mail-In Rebate


  • Long-lasting dependable power
  • Engineered to deliver the power you need for all your household devices
  • Duralock power preserve technology
Brand: Duracell Coppertop
Voltage: 1.5
Format: AA, LR6
Spend $50 or More on Duracell Batteries and get a Visa Gift Card after Mail-In Rebate


  • Lowest cost per cell among consumer alkaline batteries
  • Proudly made in USA
  • 10 year shelf life
Brand: Rayovac
Voltage: 1.5
Format: AA, LR6

  • Lowest cost per cell among consumer alkaline batteries
  • Proudly made in USA
  • 10 year shelf life
Brand: Rayovac
Voltage: 1.5
Format: AA, LR6

  • Most advanced Duracell battery available
  • High density core for long-lasting power
  • Best for high drain/high tech devices
Brand: Duracell Quantum
Voltage: 1.5
Format: AA, LR6
Spend $50 or More on Duracell Batteries and get a Visa Gift Card after Mail-In Rebate



Keeping Your Garmin GPS Battery Healthy

Most GPS batteries can last for a few hours on battery life, but continued usage and improper care can significantly decrease how long the battery can last between charges. Here are a few tips to keep your GPS battery running for as long as possible:

  • Turn It Off - When you’re not using it, turn your GPS off. Not only will this save power, but it could also prevent a dead car battery if you leave your GPS on a car charger.
  • Don’t Store the Device in Your Car - While many people leave their GPS devices in their vehicles, this can expose them to extreme temperatures that can impact the life of the battery. If you must leave it in the car, at least keep it out of direct sunlight, which can overheat the battery on hot days.
  • Keep a Spare Charger Nearby - You should always have a compatible car charger in your glovebox so that you can charge your GPS in an emergency. Many GPS devices come with their own car chargers, or you can check out our selection of GPS chargers to see if we have one compatible with your device.

Can’t find a battery for your Garmin FishFinder 300C GPS? The associates at the Batteries Plus Bulbs store in your area can help. Stop in today!

Reliable Batteries for your Garmin GPS

You expect your GPS to get you to the right location, and while a reliable battery won’t make your GPS any more accurate, it will make sure your device is always ready whenever you get lost. When you buy a replacement battery from Batteries Plus Bulbs, you know your Garmin GPS will be ready whenever – and wherever – you need it.

Plus, finding the right replacement battery is easy. Just look for your specific device and we’ll show you the compatible batteries we offer.

Battery Recycling

We are an industry leader for battery recycling. Each of our store locations is a drop-off point for battery recycling. Learn more about our recycling programs for consumers and businesses.

Have more questions? Contact us or visit your nearest store.