How to charge it to really save money?
It’s 2026 and the EV market has finally matured. The BYD Dolphin Surf didn’t become a hit because it’s a luxury spaceship. It became one because it’s simply a solid, budget-friendly car that gets passengers from point A to point B for a fraction of the cost of fuel.
If you chose the Dolphin, it means you value practical solutions. But for this car to actually be cheap to maintain, you need to know one thing: charging it “wherever” is the easiest way to overpay.
Blade Battery – solid technology without the pretense
In the Dolphin Surf, you’ll find a Blade LFP battery. You don’t need an engineering degree to understand its biggest advantage: it’s durable.
- Unlike expensive premium brands, you don’t have to watch the 20–80% range here.
- You can safely charge this battery to 100% every day.
- It’s a “workhorse” – it’s meant to withstand thousands of cycles and just work.
11 kW in the garage, meaning an end to slow charging
The Dolphin Surf supports 11 kW AC charging. This is its strongest point in daily use. Many people try to charge the car from a regular wall outlet after buying it. The result? The car stays plugged in for 17 hours, and you worry about whether you’ll have range in the morning. That makes no sense.
A dedicated Defenzo charger cuts this time to 5-6 hours. You plug the car in after work, and it’s full before you go to sleep. It’s right at home, using your own electricity, where you make real savings.
Defenzo: Equipment for those who don’t like to overpay
The Defenzo brand was created with the exact same philosophy as the BYD Dolphin: it should be solid, safe, and fairly priced. We don’t sell unnecessary gadgets, just concrete infrastructure.
Defenzo Home Smart Wallbox – your home gas station
This is our simplest and most effective solution for the garage:
- Tailored to the Dolphin: It utilizes the full 11 kW of the car’s power.
- Safety without extra charges: It has built-in Type B RCD protection. Why is this important? Because most cheap chargers don’t have it, and an electrician would probably charge you 800-1000 PLN to install such a module in your distribution board. With us, it’s included in the price of the device.
- Tuya App: You don’t have to go down to the garage to check how much power has “gone into” the car. You set charging for nighttime hours (when electricity is cheaper) and forget about it.
Check where to buy Defenzo chargers
Defenzo ToGo – A spare canister in the trunk
The Dolphin is a budget car, but it’s brave on the road. If you’re going to a summer house or to visit family where there is no wallbox, you take the Defenzo ToGo with you.
- It’s a mobile charger that isn’t afraid of rain or mud (IP65).
- It’s so armored that you can run over it with a wheel and nothing will happen.
- It has a clear screen – you can immediately see if the installation where you are is providing stable power.
The math is simple
Charging the BYD Dolphin Surf at home with a Defenzo charger (using a cheaper night tariff), driving 100 km costs you roughly the same as two coffees at a gas station. Using only public chargers, that price jumps threefold.
Conclusion?
The Dolphin is a great economical car, but it only shows its true value when paired with its own charging point.
Is your garage ready for the “Dolphin”? (Quick test)
Before you order a Wallbox, do a little reconnaissance. You don’t have to be an electrician to check the foundations. The BYD Dolphin Surf feels best with a power socket (red, 5-pin).
- Look at the fuses: For full 11 kW power, you need 16A protection on three phases. If you have an old power socket in the garage, check if the contacts are not corroded.
- Cable issue: From the distribution board to the charging point, there should be a cable with a cross-section of at least 2.5 mm² (and preferably 4 mm² if the distance is long).
- The “clean hands” rule: Defenzo systems have built-in RCD protections, so you don’t have to tear up walls to install additional protective modules. You just mount it, plug it in, and it works.
Winter in a budget electric car – no panic, but with a plan
In 2026, we have long since put the myths about “electric cars stopping in winter” into fairy tales, but you can’t cheat physics. The LFP battery in the Dolphin likes warmth. How to take care of it when the temperature drops below zero?
- Pre-heating from the cable: This is the biggest “lifehack” for Defenzo owners. Using the Tuya app, you can set charging to finish just before you leave. Thanks to this, the battery is naturally warmed up by the charging process itself.
- Remote defrosting: Instead of scraping windows, you turn on the parking climate control from the BYD app. If the car is plugged into your Wallbox at that time, the energy for heating the interior comes straight from the grid, not the battery. The range remains untouched.
Public chargers vs. Home Wallbox – a wallet showdown
Let’s be honest: using public fast-charging stations (DC) in a Dolphin is a last resort. First of all, the 80 kW DC power in this car is “okay,” but it doesn’t make it a speed demon on the road. Secondly – the price.
In 2026, prices at fast chargers can make your head spin. By charging the car at home with a Defenzo set:
- You avoid “parking fees”: Public stations often charge penalties for staying too long after charging. At home, the car can stay plugged in all weekend if you want.
- You save time: You don’t stand in line at the supermarket. Plugging in the cable after returning from work takes exactly 6 seconds. That’s less than taking groceries out of the trunk.
The myth about “ruining” the battery – why LFP is your ally
Many neighbors will probably ask you: “And what about the battery, will it be trash in two years?” You can then just smile calmly.
The Blade LFP batteries that are in your BYD are in a completely different league than those in old phones. They actually “like” to be charged. Thanks to the fact that you have a Defenzo Wallbox at home, you can top up the car even after a short trip (e.g., from 70% to 100%). For an LFP battery, that’s no stress at all, and you always have full range for a rainy day.
A system that works for you
The BYD Dolphin Surf is a car for practical-minded people. You don’t need expensive, marble charging stations to enjoy cheap driving. You need something that is solid, Polish, and intelligent.
By choosing Defenzo, you complete the system:
- You have a car that consumes little.
- You have a charger that monitors costs and safety.
- You have peace of mind because you know the “tank” will always be full in the morning.