U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Garden
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
 
Old 06-20-2012, 06:24 AM
 
Location: Swiftwater, PA
13,141 posts, read 10,574,410 times
Reputation: 9305

Advertisements

Actually; I just got some new battery powered shop tools from Lowe's. However; that brought up the question of battery care. In this case I bought 18v NiMH battery powered tools. I had wanted to purchase the newer lithium tools but decided against it considering the number of times I will use them.

The clerk at Lowe's told me that, if I wanted to get the best performance out of my batteries; that I should completely discharge them and then fully charge them. He claimed that many people make a mistake of bringing the batteries home and then recharging with a partial charge still left in them from the factory. He also told me that the NiMH batteries get only about four hundred charges and that I should never charge partially discharged batteries - because it still counts as one of the 400.

Well; I did a little research and am now almost as confused as before the clerk gave me advice. I have listed three sites that I have visited. Two of them confirm the clerk's information and the last one claims that you can damage a NiMH battery - if you discharge it lower than .9v. By the way; the one link claims that the newer Lithium batteries might only get 300 to 400 charges or maybe 100 charges less than the NiMH batteries.

Reconditioning rechargeable NiMH batteries - RechargeBatteryGuide.com

takecare.htm

Rechargeable Battery care and tips - RechargeBatteryGuide.com
Reply With Quote Quick reply to this message

 
Old 06-20-2012, 06:39 AM
 
25,631 posts, read 29,117,065 times
Reputation: 23049
All NiMh rechargable batteries perform better and last longer when they are drained completely before recharging. I've burned through hundreds over the last 12 years in construction. I won't use anything now except Lithium-ion.
Reply With Quote Quick reply to this message
 
Old 06-20-2012, 08:52 AM
 
Location: Swiftwater, PA
13,141 posts, read 10,574,410 times
Reputation: 9305
Quote:
Originally Posted by Bulldogdad View Post
All NiMh rechargable batteries perform better and last longer when they are drained completely before recharging. I've burned through hundreds over the last 12 years in construction. I won't use anything now except Lithium-ion.
I wanted to get the lithium I know that they are considerably lighter. It is just that I will not use the tools, that I just bought, that much. It surprised me that the one website listed the newer lithium as a shorter life span than the NiMH batteries. Did you notice a shorter life span with your experience? By the way, with only 300 to 400 charges on a battery; does that mean that workers in the trades replace the batteries every year?
Reply With Quote Quick reply to this message
 
Old 06-20-2012, 09:42 AM
 
23,879 posts, read 17,582,241 times
Reputation: 12765
i had a similar question about a li-ion battery in a weed trimmer; the instructions for getting the most out of the battery were pretty complicated. yet i thought that these batteries had no 'memory' issues, unlike ni-cads
Reply With Quote Quick reply to this message
 
Old 06-20-2012, 03:46 PM
 
25,631 posts, read 29,117,065 times
Reputation: 23049
Quote:
Originally Posted by fisheye View Post
I wanted to get the lithium – I know that they are considerably lighter. It is just that I will not use the tools, that I just bought, that much. It surprised me that the one website listed the newer lithium as a shorter life span than the NiMH batteries. Did you notice a shorter life span with your experience? By the way, with only 300 to 400 charges on a battery; does that mean that workers in the trades replace the batteries every year?
We noticed no notable difference in battery life between the NiMH and Lithium-ion. However performance is definitely better. One 24 volt Lithium lasts about 1.5 times longer between charges than the the NiMH. Plus they are much lighter and the power curve is much more linear, meaning no wear down it performs all the way until the battery gives out and needs a charge.

We replace batteries about once every 1-1.5 years for each tool. Again we have two to three batteries and chargers for each tool to keep them working all day long depending on the job.
Reply With Quote Quick reply to this message
 
Old 06-20-2012, 03:47 PM
 
25,631 posts, read 29,117,065 times
Reputation: 23049
Quote:
Originally Posted by uggabugga View Post
i had a similar question about a li-ion battery in a weed trimmer; the instructions for getting the most out of the battery were pretty complicated. yet i thought that these batteries had no 'memory' issues, unlike ni-cads
Well nicads are old tech in the cordless industry. Still in use on lower end power tools.
Reply With Quote Quick reply to this message
 
Old 06-21-2012, 09:07 AM
 
23,879 posts, read 17,582,241 times
Reputation: 12765
Quote:
Originally Posted by Bulldogdad View Post
Well nicads are old tech in the cordless industry. Still in use on lower end power tools.
i know. but my point was about li-ion batteries supposedly not having a memory. for that matter, i've seen many claims that NiMH batteries don't have a memory, either:

Quote:
NiMH refers to Nickel Metal Hydride and NiCd refers to Nickel Cadmium. The major differences between the two types of batteries are is capacity, memory effect and environmental friendliness. NiMH batteries have high capacity, no memory effects and environmentally friendly.
Battery_technicals
hard to know what to believe. if i had a bunch of extra cash lying around i would do a side-by-side experiment
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:

Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Garden
Follow City-Data.com founder on our Forum or

All times are GMT -6.

2005-2018, Advameg, Inc.

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 - Top