The Importance of Battery Maintenance

Category: article

 Jan 25th, 2020 by Keith Worrall 

Modified Jan 25th, 2020 at 12:19 AM

If you have a battery go bad, you’re not going fishing. Take care of your batteries, and they will take care of you. Here are some important tips and things to consider to prolong the life of your marine batteries and make sure they’re always ready when you are.


Charge after every use and allow the battery to receive a full charge

Avoid high voltage fast charging cycles – Stick to recommended voltage requirements and unplug immediately after the charge is complete OR see the next tip.

Don’t over- or under-charge – Over- or under-charging can shorten the overall life of your batteries. Use a charger with Multi-Stage Charging for a safe and fast charge. All Minn Kota Marine Battery Chargers come with Automatic Multi-Stage Charging where the charger controls the voltage and current your battery gets throughout the charging cycle, ensuring a fast, safe and precise charge.

Avoid storing in very cold or hot temperatures – Bring your batteries inside over winter when your boat is in storage and avoid leaving them in your boat or garage for long periods of time during extremely hot temperatures. All Minn Kota battery chargers have an Automatic Temperature Compensation feature that adjusts for fluctuations in temperature to prevent damaging your battery.

Battery Equalization (Flooded Lead Acid Batteries only) – Equalization cleans and protects your battery to improve battery life. Utilize a charger that has battery equalization that cleans and protects your battery at least once or twice a year. Ideally, once in spring and once before winterization or in fall. Minn Kota Precision On-Board Chargers do it automatically, every time you plug it in. They also allow you to activate a more rigorous cleaning with a push of a button. Watch this Battery Equalization video for more information.

Ensure proper water levels in flooded lead-acid batteries – Top them off with distilled water.

Avoid storing uncharged batteries for long periods of time

Keep your battery terminals clean – Scrub off any corrosion with a brush and a paste solution of baking soda and water.

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Battery Charger Promotions

Precision On-board Chargers
Longer run times & shorter charge times is the precision difference and what makes it the best charger out on the water. Get out there quicker, stay out there longer.


Digital On-board chargers
Digital on-board chargers are workhorse power plants that feature a microprocessor-based digital design built to charge quickly and safely so you never have an excuse not to get on the water.


“We’ve met with several of the large battery manufacturers to see what each style and brand needs for long-lasting performance. And we’ve built each and every one of those needs into our chargers. These are huge features that no other charger manufacturer has compensated for,” explains Dan Baston, Product Manager/ Lead Engineer at Minn Kota.

Precision Charger

Minn Kota battery chargers are digitally designed to deliver just the right amount of juice every time you plug in. No more, no less. So you don’t have to worry about variances in temperature, voltage, or other factors that could damage your batteries.


Finding a charger is as simple as 1-2-3. Just establish how many banks you need, how much power you require, and then pick the model with the features you want.

PROMOTION TERMS & CONDITIONS: This rebate offer is available to qualifying end-user purchasers of a qualifying product. If any terms and conditions are not met the rebate will be denied. VIP, discounted, or free goods orders are not eligible for any rebates or promotions. Associated personnel and employees of Johnson Outdoors, and its affiliate companies, are not eligible for any rebates or promotions. Distributors and dealers may not participate in this offer. The purchase date on your sales receipt, packing slip or invoice must be a date within the eligibility period indicated on the individual rebate application registering online at minnkotapromotions.com. The address on your rebate application must match the billing address on the receipt, packing slip or invoice. Limit (1) one rebate per qualifying rebate offer, per person, billing address, company, household and receipt/invoice/packing slip during the eligibility period, except where prohibited by law. Any request postmarked or received after the eligibility period will be denied. *Rebate is paid in the form of a Minn Kota Prepaid Mastercard. In Canada, Card is issued by Peoples Trust Company under license from Mastercard International. In the US, Card is issued by MetaBank®, Member FDIC, pursuant to license by Mastercard International Incorporated. Card valid for up to 6 months; unused funds will forfeit after the valid thru date. Card terms and conditions apply. For U.S. Residents: You will receive a Prepaid Mastercard paid in US Dollars. For Canadian Residents: You will receive a Prepaid Mastercard paid in Canadian Dollars. Neither the sponsor of the rebate (“Rebate Sponsor”) nor the entity providing the rebate reward (the “Reward Vendor”) is responsible for late, lost, misdirected or postage-due mail. Incomplete or illegible applications will be denied. Offer valid in the US (including Puerto Rico) and Canada. Please allow 6-8 weeks for delivery in US and 8-10 weeks for delivery in Canada. Offer subject to change at any time. Void where prohibited by law. Use of fictitious names, multiple addresses and PO Boxes to obtain additional rebates may constitute fraud, violate federal, state or provincial laws and may result in prosecution, imprisonment and/or fines, including under the U.S. Mail Fraud Statutes (18 USC, Section 1341 and 1342) or Canadian Criminal Code R.S.C. 1985 Cc-45 as amended. Rebate application status updates, approval, denial, and other notices may be sent via e-mail from johnsonoutdoors@ rebatetrack.com. You may check the status of your rebate by visiting the link provided in your e-mail or visiting minnkotapromotions.com. Please allow 3 weeks after submitting to make any inquiries regarding your rebate. Fulfillment of this rebate is subject to final approval by Johnson Outdoors. Reward Vendor is not liable for non-fulfillment of offers by Johnson Outdoors.

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