Protecting Your EV Battery: Why Smarter Charging Matters

WattSpot
Jan 18
2 min read

Updated: Jan 19

Electric vehicles are a significant investment - and like any premium asset, how you use and maintain them matters.

While fast charging has its place, growing evidence shows that frequent high-power DC fast charging can accelerate battery degradation over time. WattSpot is designed to help EV owners and property operators charge smarter, extending battery life while reducing overall cost.

Why battery health matters

Your EV’s battery is its most valuable component. Battery degradation impacts:

Driving range
Long-term performance
Resale value

Even small increases in annual degradation can compound over the life of a vehicle. The goal isn’t to avoid fast charging entirely — it’s to use the right type of charging in the right situations.

What the data shows

Independent research comparing charging behaviour has identified a clear relationship between DC fast-charging frequency and average annual battery degradation.

As DC fast charging becomes more frequent — particularly at higher power levels — battery wear increases.

Below is a summary of observed degradation trends based on charging behaviour:

DC Fast-Charging Frequency	Usage Group	Average Annual Degradation
Low	Under 12% of total sessions	1.5%
High	Over 12% of total sessions	2.5%
High-frequency, low power (<100 kW)	Under 40% of total sessions	2.2%
High-frequency, high power (>100 kW)	Over 40% of total sessions	3.0%

(Source linked below)

While DC fast chargers are essential for long-distance travel, relying on them as a primary charging method can increase long-term battery wear.

Why AC charging makes sense for everyday use

WattSpot chargers are designed around AC charging, which is:

Gentler on battery chemistry
Better suited for overnight and destination charging
Ideal for homes, apartments, hotels, workplaces, and shared spaces

For most daily charging needs, AC charging provides more than enough range — without the long-term trade-offs.

How WattSpot helps protect your EV

WattSpot enables a smarter charging approach by:

Encouraging lower-stress, battery-friendly charging
Reducing reliance on high-power DC fast chargers
Supporting regular, predictable charging patterns

This isn’t just better for the vehicle — it’s better for owners, operators, and long-term value.

Lower cost — upfront and over time

In addition to protecting your EV battery, WattSpot offers tangible cost advantages:

Lower to buy and install

No heavy infrastructure upgrades
Simple, compliant installation
Designed for residential and commercial environments

Lower cost per kWh

User-pays charging where applicable
Fair, transparent energy pricing
Reduced reliance on expensive public DC fast chargers

The result is a charging solution that costs less to deploy, less to operate, and less over the life of the vehicle.

A more effective, safer charging solution

WattSpot is built around a simple idea:everyday charging should be affordable, safe, and battery-friendly.

Fast charging has its place — but smarter charging is what keeps EV ownership sustainable in the long run.