Battery Charging Issue – Need Advice | Volvo V40 Forums

Today, after starting my engine (Volvo V40 D3 2016 Automatic), I received the message: "Battery charging failure" on the dashboard. Despite the warning, the car drove

2023 Feb 26

Are EV and Tesla EMFs Safe? What the Science Says

With iconic brands like Tesla leading the way, concerns still linger regarding health impacts from electromagnetic field (EMF) exposure inside EV cabins. But extensive

2026 Feb 09

Common Sources of EMF in Your Home: A

Electromagnetic fields (EMFs) are present in both natural and human-made forms throughout our homes. This guide will help you

2025 Aug 04

Key fob Battery

The key fob has either space for one or two batteries depending on the type of model you''ve got. If your manual is in Japanese or you haven''t got one, check the online

2023 Sep 28

What Factors Affect the Strength of an Electromagnet?

Many variables affect the strength of this electromagnet, and there are some variables that do not affect the strength. While the underlying physics are more advanced (see Additional

2024 Nov 23

EMF (radiation) emissions from Tesla batteries

The electromagnetic field you are referring to in Teslas (and all EVs) is called extremely low-frequency radiation (ELF). The radiation

2023 Sep 07

Battery replacement question. | Volvo V40 Forums

The main battery is the one to look at. The secondary battery is only connected to the car by a relay for a fraction of a second during an engine restart from a stop/start event,

2024 May 07

Low battery charge message

The low battery charge message relates to the main battery. On vehicles with stop/start systems and intelligent alternators, the vehicle battery is designed to operate at

2025 Mar 15

New Battery

So I think the time has come to replace the main battery. Its the original Volvo 70ah EFB battery that was on the car from new in 2016.. The car starts fine but I keep getting the

2024 Mar 01

Household Battery Recycling

Household battery recycling locations Lead-acid batteries, or "automotive type batteries," are banned from disposal. Consumers may bring lead-acid batteries to any Wisconsin retailer that

2024 Mar 29

What are the factors that affect the strength of an electromagnet?

What are some harmful effects of electromagnets? The main effect of radiofrequency electromagnetic fields is heating of body tissues. There is no doubt that short-term exposure to

2026 Jan 19

Electromagnetism | Definition, Equations, & Facts | Britannica

Electromagnetism, science of charge and of the forces and fields associated with charge. Electricity and

2023 Mar 26

Creating an Electromagnet

To locate the magnetic field of the electromagnet, direct students to move the compass in a circle around the electromagnet, paying attention to the direction that the

2026 Feb 18

Low battery charge error | Volvo V40 Forums

Hello everyone, I just bought my first car, a 2014 Volvo V40 T3, and a warning appears on the dashboard that says ''low battery charge.'' The car is recently...

2025 Aug 12

How Do Different Types of Batteries Affect the Magnetic Field of a

Surprising Power Drains A surprising side effect to these magnetic fields is the speed with which they drain batteries. Your single D-cell will go dead quickly, while a six- or nine-volt battery will

2025 Apr 01

Tesla EMF Radiation: An In-Depth Look

Tesla cars emit a great deal of EMF radiation. Follow these guidelines to reduce your overall radiation

2023 Aug 17

Low Battery warning | Volvo V40 Forums

Battery is easy to do yourself if you''re at all handy around a screw driver and a spanner, just remember to reset the battery management system before you start using the

2026 Feb 28

Electric and magnetic forces (article) | Khan Academy

During electromagnetic induction, a changing magnetic field produces an electric field. This electric field leads to a force on electrons in a coil, which makes the electrons move and

2023 Oct 16

How Do Substations Emit EMF Radiation?

Electrical substations emit low-frequency EMF radiation with electric and magnetic components that create an electromagnetic field.

2025 Nov 01

Battery issues

I''ve had both batteries replaced (with the correct models), done a 100 mile trip, overnight smart battery charge, charging voltage is fine, system messages cleared but I am

2026 Feb 17