Everyone thinks about batteries in winter, but heat is arguably harder on them, and a hot British summer or a cart left baking in the sun asks questions of the battery that a little care answers easily. Heat speeds up the chemistry that wears a battery out, and charging a already-hot battery makes it worse. None of this is a problem with sensible summer care, which this guide sets out. It is the warm-weather counterpart to our winter care guide.
- Heat accelerates battery wear, so summer care matters as much as winter.
- Let a hot battery cool before charging rather than charging it straight away.
- Store and park in shade where you can, not baking in direct sun.
- Keep the battery area ventilated and clean.
- Lithium and lead-acid both dislike extreme heat; follow the guidance for yours.
Why heat matters
A battery is a chemical device, and heat speeds up the reactions inside it, including the ones that age it. Sustained high temperatures shorten a battery's life and can reduce its performance on the day, so a cart that lives in full sun ages its battery faster than one kept cool. This is true of both lithium and lead-acid, in different ways, as our guide on lithium versus lead-acid explains.
Charging in the heat
The single most useful habit is to let a hot battery cool before charging it. Charging generates its own heat, so charging a battery that is already hot from a day's work in the sun stacks heat on heat, which is hard on it. Where you can, charge in a cooler, shaded or ventilated spot in the evening once the vehicle has cooled, rather than the moment it comes in. Follow any temperature guidance for your specific battery.
Storage and shade
Where the cart sits through a hot spell matters. Parking and storing it in shade, under a shelter, a canopy or a tree, rather than baking in direct sun keeps the battery and the vehicle cooler and kinder to both. Keep the battery area clean and ventilated so heat can escape, and for lead-acid batteries, check and top up the electrolyte as the guidance requires, since heat increases water loss. A little shade goes a long way in summer.
Tires and the rest of the vehicle
Heat affects more than the battery. Tire pressures rise as they warm, so check them when cool, and a hot cabin is simply less pleasant, which is where a canopy and good ventilation earn their place. None of this is onerous; it is the summer equivalent of the sensible winter routine, and it keeps the cart healthy and comfortable through the warm months.
Frequently asked questions
Does hot weather damage an electric golf cart battery?+
Sustained heat accelerates the chemistry that ages a battery, shortening its life and reducing performance on the day. It is not a problem with sensible care: let a hot battery cool before charging, and store and park in shade where you can.
Should I charge the battery straight after use in summer?+
Better to let it cool first. Charging generates heat, so charging a battery already hot from the sun stacks heat on heat. Charge in a cooler, shaded spot in the evening once the vehicle has cooled.
How should I store the cart in hot weather?+
In shade where possible, under a shelter, canopy or tree rather than in direct sun, with the battery area clean and ventilated so heat can escape. For lead-acid, check and top up the electrolyte as heat increases water loss.
Is lithium or lead-acid better in heat?+
Both dislike extreme heat in their own ways, so follow the guidance for your chemistry. Our lithium versus lead-acid guide covers the differences.
Does heat affect anything else?+
Tire pressures rise as tires warm, so check them when cool, and a canopy and ventilation make a hot cabin more comfortable. It is the summer version of a sensible seasonal routine.
Keep your fleet summer-ready
Ask us about care and servicing for your cart or fleet through the seasons, and we will advise and prepare your quote.
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Our guides are written and reviewed by the Hawke Electric Vehicles team, the people who specify, build, deliver and support the vehicles. We focus on honest, practical advice and flag where a figure depends on the build rather than guessing.
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