Electric vehicle (EV) owners often encounter the term “granny charger,” but what exactly does it mean? Whether you’re new to EVs or just curious, understanding this essential charging tool can make all the difference. In this guide, we’ll explore what a granny charger is, how it works, and when to use it.
A granny charger is a portable EV charger that comes with most electric vehicles. It’s designed to charge your vehicle using a standard household outlet, making it perfect for situations where access to a dedicated EV charging point is unavailable.
Why is it Called a Granny Charger?
Granny chargers are commonly used in countries such as the United Kingdom and Ireland, and they have gradually gained recognition in other English-speaking regions as well. The name stems from a combination of cultural references and practical usage scenarios.
There are two primary reasons behind this colloquial designation:
- Slow Charging Speed: The term “granny charger” is often seen as a humorous nod to the slower charging speed of these devices. Much like the stereotypical image of a grandmother who might move at a more leisurely pace, a granny charger recharges an electric vehicle (EV) at a significantly slower rate compared to other charging options, such as dedicated home chargers or public fast-charging stations.
- Emergency Charging: Another theory is that it’s named for the kind of charger you might use when visiting relatives, like your grandmother. If you’re staying somewhere without a dedicated EV charger, the granny charger provides a reliable backup to keep your vehicle topped up.
Is a Granny Charger Better than a Normal Charger?
A granny charger won’t win any speed contests – it can take up to 20 hours to fully charge your vehicle. Compare that to a standard 50kW public charger that juices up your car in about an hour. But here’s the thing: the granny charger isn’t about speed. It’s about convenience and reliability. Imagine being on a road trip and realizing there’s no fast charger in sight. With a granny charger, you can plug into any standard household outlet and get enough charge to get you back on the road. It’s like having a safety net that keeps you from being stranded.
What is the Best Granny Charger?
Picking the best granny charger is all about finding what suits your needs and preferences. There are some standout options from well-known brands like JuiceBox, ChargePoint, and Tesla’s Mobile Connector. But if you’re looking for something with a bit more oomph, BESEN is definitely worth a look. BESEN can offer a max 40A granny charger, which gives you a faster charge, and even has models with touch screens for a more high-tech experience.
When choosing your charger, think about what matters most to you – is it speed, portability, build quality, or cool features like smart connectivity? Checking out user reviews and making sure the charger is compatible with your vehicle can also guide you to the right choice.
How Long Does it Take to Charge a Tesla with a Granny Charger?
If you’re a Tesla owner, you’re probably used to the swift speeds of Superchargers. But when you’re using a granny charger, it’s time to embrace a slower pace. Charging your Tesla with a granny charger typically adds about 7 to 10 miles of range per hour of charging. This means if you’re planning a long trip, you’ll need to give your car a good night’s rest – about 10-20 hours for a full charge. While it’s not ideal for everyday use due to the slow speed, it’s a lifesaver in a pinch when you’re away from faster charging options.
Are Granny Chargers Safe?
Safety is a primary concern for many EV owners when it comes to using a granny charger. The good news is that granny chargers are generally safe to use, provided you follow some basic guidelines:
- Check the Socket: Before plugging in your granny charger, make sure the socket is in good condition and not already overloaded with other appliances. It’s best to use a socket that’s dedicated to charging your EV, without any other devices plugged in.
- Avoid extension cords: Using an extension cord with a granny charger can increase the risk of overheating and fire. Always plug the charger directly into a wall socket.
- Monitor the Charger: While it’s tempting to set and forget, it’s a good idea to check on your charger periodically to ensure it’s not overheating.
- Install a Dedicated Circuit: If you plan to use a granny charger regularly, consider having an electrician install a dedicated circuit for it. This can help prevent overloading your home’s electrical system and reduce the risk of fire.
What is the Cost of a Granny Charger for EVs?
Most new electric vehicles come with a granny charger included, so you won’t need to shell out extra cash right away. However, if you need a replacement or want a spare, you’re looking at spending anywhere from $100 to $500. The price varies depending on the brand and features, but even at the higher end, it’s a worthwhile investment for the peace of mind it provides. After all, knowing you have a reliable backup charger can save you from a lot of stress (and towing fees) down the line.
What is a Type 2 Granny Charger?
A Type 2 granny charger is a bit of a misnomer because “granny charger” usually refers to the standard, slow charger that plugs into a regular household outlet. However, some people use the term to describe portable chargers that fit the Type 2 connector, which is common in Europe and many other regions. These chargers often offer more flexibility and might include features like adjustable charging speeds. If you have a Type 2 compatible EV, having a portable charger that fits can be incredibly useful, ensuring you can charge wherever there’s a suitable outlet.
Do Electric Cars Come with Granny Chargers?
Yes, most new electric vehicles, including Teslas, come with a granny charger included in the purchase. This portable charger is part of the standard equipment, ensuring that you have a basic charging solution right from the start. It’s like getting a complimentary safety net with your EV, so you’re always prepared to charge, even if you don’t have access to a fancy charging station. This included charger is particularly handy for new EV owners who might not have installed a home charging station yet or for those who frequently travel to places without dedicated EV infrastructure.
What are the Benefits of Using an EV Granny Charger?
Using a granny charger offers several benefits that make it a valuable addition to your EV toolkit. Firstly, it’s incredibly convenient. You can charge your car anywhere there’s a standard electrical outlet, giving you flexibility and peace of mind. Secondly, it’s portable. A granny charger is compact and easy to carry, making it perfect for road trips and travel. Thirdly, it’s a cost-effective solution. You don’t need to invest in expensive charging infrastructure to keep your EV powered up. Lastly, it’s a reliable backup. In situations where fast chargers are unavailable, your trusty granny charger ensures you’re never stranded without power.
Can You Use a Granny Charger All the Time?
While the granny charger is a handy tool, it’s not designed for everyday use as your primary charging method. Here’s why:
- Efficiency: It will be really slow to charge with a granny charger. If you’re using your EV frequently, this might not be enough to keep your battery sufficiently charged for daily driving needs.
- Safety Concerns: Regular household outlets aren’t designed for continuous, high-current draw over long periods. Using a granny charger frequently can potentially overheat the socket, leading to fire hazards or damage to your electrical system.
- Long-Term Impact on Battery Health: Slow charging isn’t necessarily bad for your EV battery, but relying solely on a granny charger can lead to inconsistent charging patterns, which might affect the long-term health of your battery.
For these reasons, it’s advisable to use a granny charger only when necessary, such as in emergencies or when you’re away from home without access to a dedicated charger.
Summary
Granny chargers are a convenient tool for EV owners, especially for emergency or occasional use. However, they shouldn’t replace a dedicated home charger. Understanding when and how to use a granny charger can help keep your EV running smoothly without compromising safety or efficiency. Whether you’re using it while visiting relatives or as a backup at home, the granny charger is a reliable, if slow, way to keep your EV charged and ready to go.
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