2021 Pattinson / Reeves Batmobile
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Posted 10/23/2021 11:32:25 PM
Has NO LIFE!!

Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!


Last Login: 11/26/2021 5:38:41 PM
Posts: 3,028, Visits: 4,670
Given the numbers of muscle car fans and builders I believe we may see a surprising number of
Pattinson/Reeves replica Batmobiles.
Especially with the availability of the 1/10th scale Mattel RC model and after the Batman movie in 2022. vertigo
Post #169854
Posted 11/14/2021 10:51:33 AM
Has NO LIFE!!

Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!


Last Login: 11/26/2021 5:38:41 PM
Posts: 3,028, Visits: 4,670
Placed a coy of this post here for anyone who might be planning to and/or actually building a bat vehicle.
A few points on battery operated power tools I learned from experience.

(1) Stick with the major and most used brands. Dewalt and Milwaukee are the top two followed by Makita.

(2) Try to buy most of your battery powered tools from one brand and try to purchase your additions so they
are compatible with each other in power and battery sizes.

(3) Avoid cheap tools in this category if you plan to do much work with them.

(4) Buy your first two tools with batteries and charger. That will give you a backup charger.

(5) Buy additional tools without batteries/charger (bare tools) You will save 60%.

(6) Batteries: A few batteries can power a lot of tools. 5 AH batteries provide good balance of weight to power

(7) Batteries: BUY ONLY BRAND NAME BATTERIES.
All the after market batteries sold on Amazon, eBay, etc. don't work.
They are all rip offs. Seen a lot of unhappy people over the years that bought after market batteries.

(8) Buy your battery tools and batteries during Christmas and/or fathers day. 25-30 percent off most places.

(9) Compare Amazon prices to before purchasing your battery tools and batteries. Usually 20-35% cheaper
than Home Depot.

As for my own current battery tool situation:
I have 15 or so Dewalt 18-20V tools that were mostly purchased as bare tools. (Bare tools don't come with batteries and cost around 40% of the tools when they come with battery/batteries and a battery charger.)
Never had a bad one.
I decided on using mostly Dewalt because I wanted to run them all on the same batteries. 20V 5 AH batteries.

I also have a Dewalt 20V hedge trimmer and their 12" chainsaw. (one charged battery will make more than 125 cuts in 4" diameter wood.

Chainsaw bought as a bare tool (no battery or charger) cost me 145.00 delivered from Amazon.

These twelve 20V batteries power all my Dewalt 18-20V tools.
I have six 20V 5 AH batteries
Two 20V 6AH batteries
Four 20V 2AH batteries
For my older 18V dewalt tools I have have plug in 18 to 20V conversion adapters.

Note: There are other higher AH 20V batteries but are bigger and heavier, and cost 150.oo to 200.oo each.
Post #169933
Posted 11/16/2021 6:33:54 PM
Has NO LIFE!!

Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!Has NO LIFE!!


Last Login: 11/26/2021 5:38:41 PM
Posts: 3,028, Visits: 4,670
Placed a copy of this research posting from the University of Michigan for anyone planning to and/or actually building a bat vehicle.

Excellent overview on getting the most useful life from lithium batteries.

"Tips for extending the lifetime of lithium-ion batteries"
February 17, 2020

ANN ARBOR—Lithium-ion batteries are everywhere these days, used in everything from cellphones and laptops to cordless power tools and electric vehicles.

And though they are the most widely applied technology for mobile energy storage, there’s lots of confusion among users about the best ways to prolong the life of lithium-ion batteries.

To help clarify, University of Michigan researchers plowed through scores of academic papers and manufacturers’ user manuals, as well as information on customer-support websites, to develop a list of nine best practices for lithium-ion battery lifetime extension.

Nine keys to extending lithium-ion battery lifetime. Image credit: Center for Sustainable Systems at U-M School for Environment and Sustainability.
Nine keys to extending lithium-ion battery lifetime. Image credit: Center for Sustainable Systems at U-M School for Environment and Sustainability.

“By minimizing exposure to the conditions that accelerate degradation, batteries can last longer. And this has a positive environmental impact, as battery production is a source of greenhouse gas emissions and many other pollutants,” said study senior author Greg Keoleian, director of the U-M Center for Sustainable Systems at the School for Environment and Sustainability.

“Additionally, there are significant financial incentives for users to avoid adverse conditions, as the cost of lithium-ion batteries can range from 5% to over 50% of a product’s cost.”

The U-M team’s findings were published Feb. 15 in the Journal of Energy Storage.

Many of the recommended practices are related to the three main variables that impact battery health: temperature, state of charge and current.

Tips for extending lithium-ion battery lifetime in power tools.

Avoid temperature extremes, both high and low, when using or storing lithium-ion batteries. Elevated temperatures can accelerate degradation of almost every battery component and can lead to significant safety risks, including fire or explosion.

Minimize the amount of time the battery spends at either 100% or 0% charge. Both extremely high and low “states of charge” stress batteries. Consider using a partial charge that restores the battery to 80% SoC, instead of 100%. If that’s not possible, then unplug the device as soon as it reaches 100%.

Using “fast chargers” is convenient but will degrade a lithium-ion battery more quickly than standard charging. Discharging a battery too quickly also leads to battery degradation, through many of the same mechanisms.

Some manufacturers of cordless power tools advise users not to store batteries in the charger, while others caution against running down the battery completely. A few recommend a minimum ambient temperature of 32 F when charging the battery, and a maximum of 104 degrees.

Avoid use or storage of lithium-ion batteries in high-moisture environments, and avoid mechanical damage such as puncturing.

There are two main forms of battery degradation: capacity fade and power fade. Capacity fade is a decrease in the amount of energy a battery can store, and power fade is a decrease in the amount of power it provides."

To rear the complete research go to: https://news.umich.edu/tips-for-extending-the-lifetime-of-lithium-ion-batteries/
Post #169942
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