Batteries – The Heart of the Electric Vehicle Conversion

The batteries are truly the heart of the EV conversion! Getting the right batteries for your ev conversion is essential and will ensure that you have many years of service from your converted vehicle. Deep cycle lead acid batteries, which can be further divided into flooded and sealed batteries, are used the most in electric vehicle conversions for the following reasons:

1. Deep cycle lead acid batteries are able to withstand repeated heavy discharging up to 30% of their capacity. They are able to withstand discharging to deeper levels for short periods of time, although this will affect their lifespan adversely.

2. Flooded Deep Cycle lead acid batteries are comparatively cheap, compared with other types of batteries and will last for quite a long time if you take care of them and do not discharge them beyond 30% of capacity and recharge them well when they are discharged.

3. Sealed Deep Cycle lead acid batteries are lighter than flooded batteries, which is beneficial when doing conversions with small vehicles and possibly some higher performance vehicles. They also do not need to only be placed upright and can therefore be placed into positions which are not possible with flooded lead acid batteries.

When considering which batteries to purchase for your electric vehicle conversion other factors which you should consider are:

1. The Life Cycle Cost
This is the initial cost of the batteries over the lifespan of the batteries, and can be a significant factor in determining which battery to use

2. Initial Cost Range
This is the initial cost of the batteries over the anticipated range, which can be used in conjunction with the life cycle cost in deciding which battery to use.

3. The Energy Density
This is amount of energy contained in a specific amount of the fuel source, that is the battery. Measured in watt-hours per pound, or watt-hours per kilogram it is a good way of determining which battery will best suit your conversion.

4. The amount of maintenance required.
Servicing an electric vehicle is not nearly as demanding as servicing a regular gas vehicle, however it is necessary to pay careful attention to the batteries in your electric vehicle as properly maintained batteries will last longer and therefore be cheaper per mile travelled.

As the batteries represent a considerable cost factor in your ev conversion you should carefully consider all these facts before choosing the batteries for your electric vehicle. And when you have made the decision and bought your battery set for your electric vehicle, be sure to take good care of them and then you will enjoy many miles of carefree and low cost traveling with your new electric vehicle. Enjoy the EV Grin!

How Are Electric Vehicles Charged?

Before buying an electric vehicle it is essential to gain familiarity with the necessary on-board equipment to prevent “charging” or, to use a current term, “top-up” problems.

It is important to check that the electric vehicle is fitted with a battery charger with a “standard” connection, i. e. suitable to draw electrical energy directly from ENEL’s grid and therefore from the power outlet in our garage. If it’s not then there is something wrong and you need to contact the seller.

This solution in the standard equipment fitted on an electric vehicle allows to charge the batteries in any place with mains electricity. Indeed electric cars have other various types of battery chargers. However, these do not allow to draw electricity from the mains supply but need special adapters or need to be connected directly to the charging points in service stations now available in large towns. The ideal solution is to have a battery charger on board the car with a high-frequency standard socket without the need to resort to external devices.

When taking into consideration an electric vehicle one needs to examine the costs to bear for the energy required to power the set of batteries. Models that allow to reduce energy costs are definitely the ones that allow to charge the batteries directly from the national domestic mains supply. Usually a full energy charge for a complete set of traction batteries for vehicles that draw energy directly from the mains supply does not cost more than 2 euros.

Vehicles fitted with a standard battery charger allow to optimise the time spent at home to charge the batteries. Indeed on average it takes 8 hours to fully charge a set of traction batteries. We recommend charging the entire set of batteries overnight, after the vehicle has been used during the day, in conjunction with the cheapest electricity tariff. It is also possible to charge the batteries for less time during the day for partial charges.

Partial charges do not result in problems affecting the runtime and/or efficiency of the set of batteries, as they are not subject to the memory effect. Precisely because they do not suffer from the memory effect, the set of batteries of electric vehicles has an average life of about 4 years.

A fully charged set of batteries of an electric vehicle allows for an uptime that varies between 70 and 100 km, depending on the model and set-up selected.

Electric Vehicle History

Electric vehicles have been around for many years, even though the general public think that electrically powered vehicles are a recent invention. This is because only in recent years these type of vehicles have become more widely known due to being considered as possible alternatives to vehicles powered by combustion engines in an effort to reduce emissions that contribute to Global warming.

An electrically powered small scale model car invented in 1828 in Hungary is considered by many as being the first invented electric vehicle. Others consider an electric powered carriage invented in the 1830’s in Scotland by Robert Anderson as the first electrical powered vehicle. Another small scale electric car was designed by Professor Stratingh and built by Christopher Becker, his assistant, in Holland in 1835. Thomas Davenport also built a small electric car in 1835. He also invented the first DC motor built in the US.

Unfortunately battery technology was not advanced enough to justify further development of these type of vehicles back then. It was not until the late 1890’s that the first true passenger electric vehicle was built by William Morrison in the US. In fact in the years 1899 and 1900 more electric vehicles were sold than other types of vehicles like gasoline and steam powered vehicles in the US.

In the 1900’s electric powered vehicles had many advantages as compared to their competitors. They didn’t have the smell, vibration as well as noise as did the gasoline vehicles. Also, changing gears on gasoline vehicles was the most complicated part of driving, while electrical automobiles did not require gear changes. Steam-powered cars additionally had no gear shifting, but they suffered from long start-up times of up to 45 minutes on cold early mornings.

Steam vehicles had less range before requiring water than an electric vehicle’s range on a single charge. The best roads of the period were in town, restricting most travel to local commuting, which was well suitable for electric vehicles, since their range was limited. The electric car was the preferred alternative of many because it did not require to manually turn the hand crank to start the engine as the gasoline vehicles needed and there was no wrestling with a gear shifter to change gears.

During World War I, the cost of petrol went through the roof contributing to the popularity of electric cars. This lead to the development of the Detroit Electric which started production in 1907. The car’s range between battery recharging was about 130km (80 miles). The range depended on exactly what type of battery came with the vehicle. The typical Detroit Electric was actually powered by a rechargeable lead acid battery, which did exceptionally well in cold weather.

But the popularity of the electric car quickly came to an end. With better roads being built not only within cities, but also connecting them, the need for longer range vehicles grew. This made the electric car an impractical means of transportation. Also the newly discovered oil in the state of Texas in the US which brought the price of gas down considerably, along with the electric starter invention in 1912 which eliminated the need for a hand crank, made the gasoline vehicle the vehicle of choice. And with Henry Ford making them extremely affordable to the general public by mass producing them, the fate of the electric vehicle was sealed for many years.

It wasn’t until the 1990’s that electric vehicles started resurfacing. With the Global warming issue, the exorbitant prices of imported crude oil and legislation for smog reduction in cities, electric vehicles not only resurfaced but this time are here to stay. One of the main reasons contributing to the re-birth of the electric car is the advance in battery technology. The lithium-ion battery packs and the nickel metal hybrid battery packs are much lighter than previous batteries and can hold enough charge to power a vehicle for 100’s of Miles at high speeds between charges making electrical vehicles efficient and practical.