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battery life
A battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell.Primary (single-use or "disposable") batteries are used once and discarded, as the electrode materials are irreversibly changed during discharge; a common example is the alkaline battery used for flashlights and a multitude of portable electronic devices. Secondary (rechargeable) batteries can be discharged and recharged multiple times using an applied electric current; the original composition of the electrodes can be restored by reverse current. Examples include the lead–acid batteries used in vehicles and lithium-ion batteries used for portable electronics such as laptops and mobile phones.
Batteries come in many shapes and sizes, from miniature cells used to power hearing aids and wristwatches to, at the largest extreme, huge battery banks the size of rooms that provide standby or emergency power for telephone exchanges and computer data centers. Batteries have much lower specific energy (energy per unit mass) than common fuels such as gasoline. In automobiles, this is somewhat offset by the higher efficiency of electric motors in converting electrical energy to mechanical work, compared to combustion engines.
My wife has a 145 mile round journey for her three days a week commute in an MG Trophy LR (61kw battery). We have been charging to 80% in line with recommendations to preserve battery life. But now that winter is coming she is experiencing range anxiety. I say don't worry but that is easy for me...
Hi all.
Ive had my Mg4 long range trophy for 3 months, its advertised at 281 miles withnits 64kw battery.
When fully charged it used to show 276 miles of range, the last few charges it is only showing around 196 to 210 miles.
What has gone wrong?, its only 3 months old?, could it be an issue...
Maximising Battery Life for High Nickel Batteries by Jeff Dahn! This synopsis taken from the Limiting Factor.
Jeff Dahn is one of the fathers of the Lithium Ion battery, along with John Goodenough, Stan Whittingham, and Akira Yoshino.
The key takeways are:
1) Note: Everything below applies...
Hi all, premptative question, anyone aware of the life expectancy of the battery pack. I believe we have a manufacturers warranty of 80k miles but unsure when deterioration gets so bad a replacement is needed.
Reason for the enquiry is the pooŕ resale value, it appears I'll be hanging onto my...
Hi, just wondering if this is normal and if there is a reason? When I started the car it was 89% 280km eco after clearing the trip. When I stopped it was 28 minutes 73% 222km eco, trip was 35.1km. When I cleared the trip it was 231KM and the petrol sign was 20.2. I have the SV EZ Essance 320...
I’m new to EVs and the world of charging/batteries but want to make sure I’m looking after the battery in my Trophy as best I can.
I’ve got a Zappi so can charge from the excess solar, as well as an Octopus Go tariff to charge from the grid if the weather’s a bit unreliable/not working at home...
My zs is 10 months old now an where as it always showed 163m range after a full charge now it only shows 162. I have reset the mile per kilowatt button etc. I know this is only 1 mile and not worth bothering but I am just curious, is a gentle reduction over time normal? Thank you
Hi all,
I just got my home charger installed - a PodPoint.
I'm typically going to do very few miles -just short trips round town - with the off longish trip thrown in.
My limited research would suggest that good practice would be:
1. not to continually recharge the battery - I'm thinking I'll...
Loads of EV’s have been sitting around during lockdowns on full charge getting little use - some for over 12 Months. Whilst some have not left their cars fully charged during this time others have. Will we see a knock on effect in a few years with batteries degrading early?
We are changing to an MG ZS EV later this month. We are unable to get the car to the house, but we have a rapid charger about 50 mts from the house. I have used this for the Leaf most times . Is there anyone who charges on Rapids who can tell me if it affects the battery life?
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