One Finite Planet

One Finite Planet

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Charge Time Calculator: Configured for Atto 3.

Date Published:


Calculator notes and instructions.

The three modes:

  1. Time to charge to %: just fill in the initial charge percentage and the desired charge level.
  2. Time to charge (and charge %) to have a desired range.
  3. Time to charge (and charge %) to add desired additional range.

Time is currently minutes, not minutes and seconds.

I have significant analysis of EVs in general, and some of the Atto 3 in specific, as I feel it represents the start of a 3rd wave of EVs. As I get more data, I will update calculations.

All charge times are best case scenarios, as many things can delay charging, including the charger breaking down as you go to use it, or someone else plugging in to the only available charger just as you arrive.

Apps like a better route planner have built in calculations, but these do not always match people experiences with vehicles, particularly newly released vehicles. This calculator allows modifying the charge curve data to get result consistent with a person’s experience. Plus it is easy to calculate times for alternative plans, and use together with other route planning.

This is a first version, and will adapt to feedback. I suspect it is slightly optimistic, as currently only calculates time under ‘ideal’ circumstances. Plus there is the time for plugging in an getting the charger started to be added.

Atto 3 Charge ‘Curve’.

Charge curve from BYD via EVs & Beyond NZ.

It is not clear if this data is ‘charge added’, or ‘power to the battery’, or even power sent from the charger.
In all cases there will be some losses. The ‘losses’ field can be adjusted to allow for this.

Further, this curve is under ideal conditions. As noted on the Atto 3 page, people have recorded very different charge curves in extreme temperatures, or on chargers with more real world constratiants.

Updates.

  • *2022 September 28: Added charge loss calculations and moved loss setting to 1st page.
  • 2022 September 27: Initial version.

Features to be added:

  • Ability to save charging curves for different vehicles.
  • Currently assumes >= 150kW charger, other charger options to be added.

If people find this useful, please indicate with likes (page top right), and then I will keep updating.

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Table of Contents

Categories

EV Charging for Apartment complexes: A problem that can require a battle.

November 14, 2022 November 15, 2022

There are 3 approaches to residents of apartments being able to charge EVs:

  • They can go elsewhere to charge.

  • A small number of charging spaces will be provided.

  • Provision for individuals to have charging at the designated car space is facilitated.

This is a look at why charging and getting it right is a challenge for apartment complexes, those who want the problem to remain unsolved, and the merits of the possible solutions.

Read More »

Car Wars: EV rebels vs oil and auto empires.

November 8, 2022 November 9, 2022

This is the exploration of a chequered history, the battles between EV and oil and auto companies that is still happening today. From companies forcefully taking back EVs from consumers to destroy them, to the battle between pop group A-Ah and authorities in Norway, to the Toyota spending billions to fight EVs and the wheels literally falling off their 2022 electric car, from industrial intrigue involving Interpol red notices, to the rise of Tesla and BYD.

Read More »

BYD Atto 3 Australian Story.

October 21, 2022 February 1, 2023

I started a page on the Atto 3 back in April 2022, but the launch in Australia has become so complex that it justifies a separate page, so here it is together with NZ information, starting with content moved from the original page, but updated.

This is a page with details about the Australian, and New Zealand rollouts of the Atto 3 and the BYD brand, which from these humble beginnings, could become a major part of the automotive scene in both countries.

For the general overview of the Atto 3, including information learnt from the experiences of owners, including those in Australia and New Zealand, see the main Atto 3 page. For the strange events around the Australian launch, and the use of the centre rear seat for baby capsules, read on!

Read More »

EV Price-Parity: It’s here already – sometimes, and EVs are setting sales records in key segments.

October 19, 2022 March 19, 2023

There already are some EVs with not just “Schrödinger’s parity“, but genuine price-parity winning not just awards, but topping sales charts. These are mostly from the Tesla and BYD duopoly, but they are not entirely alone.

Beating ICE vehicles in sales chart is the best test for price-parity, and segment by segment, EV contenders are being launched. Yes, there are still many overpriced ‘token EVs’ that either exist to satisfy green requirements, provide products for brand loyalists demanding EV products, or help convince their makers “there is little demand for EVs”.

This is an evaluation of price parity, and a list of vehicles with price parity on the market. The previously subsidy free Australian market is the base, but with inclusion of key international. The implications for established brands, and brand loyalty were surprising.

Read More »

Any transition from gas to EVs needs around 30 years.

September 24, 2022 September 29, 2022

In this polarised world, there seem to be two groups: those who want all vehicles to be EVs now, and those who feel EVs will never be a good idea.

Truth is, it would create a legal minefield and cost consumers and the environment heavily to ban too quickly, but bans will come.

This is an exploration of reality of a transition to EVs, which concludes any optimum transition takes around 30 years.

This conclusion means anyone wanting to reach EVs by 2050 needs to start very soon, and anyone worried all EVs should never happen, can take comfort that any environmentally sound transition will take a long time, although for economic reasons, does need to at least start soon.

Read More »

The 3rd EV wave: Tesla and the Chinese are coming, and in a hurry!

September 7, 2022 September 7, 2022

EVs can be divided into 3 waves:

  1. EVs that people can use despite limitations including the Tesla Model S, Nissan Leaf, i-MiEV, and Zoe.

  2. Then EVs are truly competitive in premium and enthusiast markets: Tesla Model 3, then Model Y.

  3. Mainstream EVs at the Tesla Model A/2 price point, but so far from China, not Tesla.

While China has been another world for EVs, with price competitive EVs from US$5,000, only now in 2022 is the rest of the world getting its first 3rd wave EVs, and so far, they all come from China.

Teslas were sold globally, but every other EV, was either an EV not sold in China, or a Chinese only EV. Two separate worlds of EVs, that have begun a hurried unification and bring 3rd wave EVs and automotive industry disruption to the entire world.

Read More »