Lithium Baterries

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I'm finding my 18 volt lithium tool batteries work better if they are removed from the charger as soon as they show charged. The latest from Ryobi is 9 Amp Hour.
 
The mystery unnamed new charger does not appear to be the Sterling, sorry. The Sterling factory default lithium setting seems to be 14.4 bulk and then an extra 30 minutes at 14.4 for absorb and finally 13.8 conditioning/float. The BattleBorn custom profile seems to keep the 14.4 bulk and just change the float to 13.6. I see nothing about charging to 14.2 and then just turning off. I'm happy to be corrected.

My previous comment seems to have been removed. It was simply a way of hinting that perhaps a little bit more information might be of help to identify this new charger on the market that some of us might be interested in investigating. A name? A link? A picture? Anything???
 
if you want more info politely ask. your comment started a back and forth bickering session. so I nipped it in the bud, before it got out of control. highdesertranger
 
Thanks HDR.

My earlier post was intended to give a bit more information to answer the question of whether or not to leave a Lithium battery on charge or to disconnect when charged. Commercially available products are now coming out with a Li setting that stops charging when the battery is charged to some predetermined value. I have more confidence that I am doing it right with my Li setups and that I do not float as a matter of course. I figure someone with engineering qualifications and knowledge of Li technology and charging requirements has had input to the settings available on the new charger.

Lithium technology and chemistry is not just a better version of LA based energy storage. It also has lots of advantages over LA. Charge and use all the way down to 10 or 15 % SOC is increasingly used by those who I talk to and some of those have been playing in the space of some years.

Right now I am trying to find out how the BMS on the “drop in” replacements into existing LA, manages things. I have had it suggested that some do a charge at whatever (14.2?) then float at a somewhat lower voltage (13.8?). What happens then if a load is connected? Does the charge circuit remain idle until the battery terminal voltage drops below, say 13 Volts, before the a charge cycle starts? The answer to the question is important to me as I may only have Solar available as a charge source for a couple of days. A lot of LA battery and Solar combination users depend on a float function as a way of making sure the evening cutoff of charge still leaves their battery close to full as night time draw starts.

The BMS technique that does not start a charge cycle until the dependent battery is below some set value is not new. My VW for example, does not connect Alternator charging to the start battery as a matter of course. Whether or not the start battery gets charged depends on its SOC. The arrangement is one reason I charge house batteries using a DC to DC charger.

I also get it that some are interested in the charger referenced earlier. Building a Li battery out of discrete cells then adding a purpose built charger and finishing with a Low Voltage Cutout can provide a usable setup that has cost less than half the price of a box off the shelf.
 
Thank you for understanding that some of us are interested in the charger referenced earlier. But perhaps the understanding that we would like to investigate the product further to see if it is something that could meet our needs is being overlooked. Unfortunately, for that we need some type of lead we can follow. I did in fact try googling 14.2 plus a handful of related charging terms hoping to find the mystery unnamed product but I was unsuccessful.

I just got the Sterling DC to DC charger, it's still in the unopened box and in the return period. If there is something out there that could possibly serve my needs even better than that unit then I would really like an opportunity to check it out, as would others, I'm sure.

So, pretty please, would you mind letting us know how we can find more information about the new charger? Is there a name, a link, a picture, anything? If not, then how did you hear about it? Can we follow up on that somehow?

If it's not actually commercially available yet and is just vaporware at the moment then would you pretty please let us know that?
 
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