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Midstate Battery

Our Company

Nico GB20 Genius Boost Sport

Noco GB20 Genius Boost Sport Jumper Pack is designed to jump start up to a 4.0L engine. It can be used for motorcycles, snowmobiles, ATVs, automobiles, and as a USB charger for headphones, tablets, and other electronic devices on the go.

Marine Batteries for Boats and Trolling Motors

We stock high quality, American made Marine Batteries by Sportsman, NorthStar, Power-Tec, Gel-Tech, Odyssey, and Lifeline. We also carry Optima BLUETOP Marine Batteries and RELiON Lithium marine batteries. Find the best battery for your boat or trolling motor by contacting Midstate Battery, today!

Lithium Iron Batteries

RELiON Lithium Iron Phosphate (LiFePO4) Marine batteries offer lightweight, safe and high power energy solutions for your watercraft. These dual purpose, maintenance free batteries provide more power than traditional lead-acid batteries, are long-lasting, and designed to perform in harsh conditions–freezing cold, scorching heat or rough waters.

Battery Testers

NorthStar Pure Lead AGM Batteries

All NorthStar Pure Lead AGM Batteries are made in the USA using innovative technologies to deliver exceptional performance, superior cranking, unrivaled cycling, faster recharge and minimal maintenance, no matter what you drive or where you drive it. These batteries are ideal for Automotive, Marine, Heavy Duty, and First Responder applications.

Booster Packs and Jump Starters


Power Your Adventures with Lithium Iron Phosphate Batteries by RELiON

  • Light weight
  • Low resistance & fast recharging
  • 10X longer life span than lead acid
  • 99% efficient, greater energy density
  • LiFePO4 technology, zero emmisions

NorthStar Pure Lead Batteries

NorthStar Ultra High Performance Batteries delvier superior cranking, unrivaled cycling, faster recharge and minimal maintenance.

These Pure-Lead AGM batteries are 100%
Made in the USA. 
Click here to learn more about NorthStar.

FREE Battery Testing & Analysis

Stop waisting time in line at auto parts stores! Our team has 100+ years of combined battery industry experience, allowing us to provide top-notch service and support to our customers, including FREE Battery Testing & Analysis.

Drop your battery off in the morning - we'll notify you of the results - pick up later that day. Call ahead to set a testing time that works best for you. Or, walk-in for instant testing with a technician*.

*Depending on time of day and staff member availability.

NFIB Member CT Marine Trades Association US Chamber of Commerce Seal BESA Allegiant Power



Midstate Battery is one of New England’s leading independently owned and operated battery specialists. We guarantee excellent prices and exceptional service from experienced battery professionals. Whether you're looking to match-up an old battery or buy new, we can supply you with more than 1,000 different types of batteries for automotive, industrial and specialty markets.