Mac Engineering & Equipment

How a lead-acid battery works

How Lead-acid Batteries Work

How a Lead-Acid Battery Work Bill Hammack explains the essential principles of a lead-acid battery. He shows the inside of motorcycle lead-acid battery, removes the

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Dry Charge Negative Plates

Dry Charge Negative Plates Oil Processed Negative Plates Dry charged batteries, from the time they are completed with vent caps or closures in place until

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Dry Charge Plate Drying

Dry Charge Plate Drying Plate Drying Considerations The Tiegel SmartDry™ Dry Charge machine are able to dry individual plates whereby the baskets which are normally used to

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MAC Engineering & Equipment 60th Anniversary

MAC celebrates 60 years

MAC Celebrates 60 Years April 02, 2025 From Garage Startup to Global Leader in Lead Battery Manufacturing Equipment In 1965, engineers Charles McAlpine “Mac” and

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About the Author

About the Author

Jimmy Stewart Director of Sales at MAC Engineering & Equipment

Jimmy Stewart is part of the Battery Council International’s (BCI) Half-Century club. Which for those who don’t know, that means Jimmy has been working in the energy storage industry for over 50 years. Now he is the VP of Sales and Marketing at MAC. When he’s not selling and marketing, he’s helping our readers keep up on the latest energy storage news.

Jimmy Stewart is part of the Battery Council International’s (BCI) Half-Century club. Which for those who don’t know, that means Jimmy has been working in the energy storage industry for 50 years. Now he is the VP of Sales and Marketing at MAC. When he’s not selling and marketing, he’s helping our readers keep up on the latest energy storage news.