As electric vehicles (EVs) become the standard on our roads in 2026, more residents in Redhill and across Surrey are making the switch to cleaner, greener transport. However, owning an EV is about more than just driving; it’s about how you fuel it. While home charging is incredibly convenient, many homeowners unknowingly fall into habits that can slow down their charging, increase their electricity bills, or even compromise the safety of their home.
At ADS Electrical, we’ve seen everything from "DIY disasters" to perfectly good chargers being used inefficiently. Whether you’re in Earlswood, Meadvale, or the heart of Redhill, avoiding these five common mistakes will ensure your ev charger installation surrey is a long-term success.
1. Relying on the "Granny Charger" for Every Day Use
When you buy a new EV, it often comes with a "granny charger": a portable cable that plugs into a standard 3-pin domestic socket. It’s called a granny charger because it’s meant for occasional use, like when you’re visiting a relative who doesn’t have a dedicated wallbox.
The Mistake
Many drivers use this as their primary charging method. While it works, it is incredibly slow (usually around 2.3kW), meaning a full charge could take over 24 hours. More importantly, domestic sockets are not designed to handle a continuous high-load draw for 10+ hours at a time. This can lead to overheating, melted sockets, or even fire risks.
The Fix
Invest in a dedicated 7kW home charging point. A professional electrician redhill can install a dedicated circuit that is safely rated for the load. Not only is it safer, but it’s also roughly three times faster, ensuring your car is ready every morning.
2. Choosing the Wrong Charger for Your Lifestyle
Not all EV chargers are created equal. In 2026, the market is flooded with options, from basic "dumb" chargers to ultra-smart systems that integrate with your home’s solar panels.
The Mistake
Buying a charger based solely on price or aesthetics. For example, opting for a "tethered" charger (with the cable permanently attached) when you might change your car soon to a model with a different socket placement can be a headache. Conversely, buying a charger that doesn't support smart scheduling means you’re missing out on the cheapest energy rates.
The Fix
Before committing to an EV charger installation Redhill, consider your future needs. Do you have solar panels? Look at the Zappi Eco-Smart range. Do you want flexibility for different car brands? An "untethered" unit allows you to swap cables easily. We offer free consultations to help you match the right technology to your Redhill home.
3. The "DIY" or Non-Specialist Installation
It might be tempting to ask a general handyman or a "mate who knows a bit about wiring" to mount your new wallbox. After all, it's just a few wires, right? Wrong.
The Mistake
EV chargers require a significant amount of power and must adhere to strict 18th Edition wiring regulations. A non-specialist might miss crucial safety features like RCD (Residual Current Device) protection specifically designed for DC leaks, or they might fail to check if your home’s main fuse can handle the additional 32-amp load.
The Fix
Always use an NICEIC Approved Contractor. At ADS Electrical, we ensure your consumer unit (fuse board) is up to standard and that the installation is fully certified. This isn't just for safety: it’s often a requirement for your car’s warranty and your home insurance. If you have an older fuse board, we can provide a seamless upgrade as part of the project.
4. Charging to 100% Every Single Night
We’re conditioned by our mobile phones to want to see "100%" every morning. With EVs, this isn't always the best approach for the longevity of your battery.
The Mistake
Constantly topping up your battery to 100%, especially if you only have a 20-mile daily commute through Reigate or Merstham. Lithium-ion batteries (common in most EVs) are happiest when kept between 20% and 80% charge. Keeping them at 100% for long periods in the driveway can cause the battery to degrade faster over the years.
The Fix
Use your charger’s smart app to set a "charge limit." For daily driving, set the limit to 80%. Only boost it to 100% when you know you have a long trip ahead (like a drive to the coast or a trip up to London). Most modern smart chargers allow you to control this from your phone, ensuring your battery stays healthy for 2030 and beyond.
5. Ignoring Off-Peak Tariffs and Software Updates
Your EV charger is likely the most advanced electrical appliance in your home. Like your phone, it requires occasional updates to stay efficient and secure.
The Mistake
"Setting and forgetting." If you haven't checked your electricity tariff since getting an EV, you are almost certainly overpaying. Charging during the "peak" evening window (5 pm – 9 pm) is the most expensive time to fuel your car. Additionally, ignoring firmware updates can lead to glitches with the smart scheduling features.
The Fix
Switch to an EV-specific energy tariff that offers cheap rates overnight (often between 12 am and 5 am). Sync your charger to only activate during these hours. Also, make sure your charger is connected to your home Wi-Fi; this allows it to download the latest software updates automatically, ensuring you have the latest safety patches and energy-saving features.
Local Experts You Can Trust in Redhill
At ADS Electrical, we take pride in being the leading electrician redhill for both domestic and commercial projects. From initial design to the final safety check, we manage the entire process. We don't just "fit" chargers; we provide a complete energy solution.
Our service areas include:
- Redhill (Earlswood, Meadvale, St. John's)
- Reigate & Merstham
- Salfords & Nutfield
- The wider Surrey area
Whether you need a single home charging point or a full-scale LED lighting and EV project for a commercial warehouse, we provide free quotes within 24 hours.
Ready to Upgrade Your Charging Game?
Don't let a poor installation or bad habits hold your EV back. For a professional, safe, and efficient EV charger installation Redhill, contact the team at ADS Electrical today.
Call us on 07870554498 or email [email protected] to book your free consultation.