1. Home
  2. ⏚ Electrical Engineering
  3. OK to leave Li-ion battery in charger with no power connected?

OK to leave Li-ion battery in charger with no power connected?

After I have charged my spare lithum-ion camera battery I like to
leave it in the charger with the mains disconnected.
(It's a handy place to keep the battery.)
In that sort of setup, would the disconnected charger still provide a
circuit which slowly discharges the battery?
Reply to
Paul
Loading thread data ...
Most any manufacture will state in the instruction manual to NOT leave batteries in a charger. Leaving them in will do as you suspect, slowly drain them.
Reply to
Rich.
Contact the manufacturer of the charger. MOst of the times the instructions not to leave them in the charger assume that it is still plugged into the AC power line
Reply to
hrhofmann
It depends on the design of the charger, but in most cases there is no harm in leaving the battery in place. Lithium battery chargers have fairly complex control circuitry that will isolate the cell(s) from anything else.
Reply to
James Sweet
Its not plugged in so the circuit isnt complete, you would have to run your own tests to see what happens.
Reply to
ransley
On Tue, 06 Oct 2009 21:40:32 +0100, Paul wrote in :
It all depends on the battery and the charger. Some are safe that way and some are not. Check the documentation.
Reply to
John Navas
Probably an effect which is no more than the effective self-discharge of the lithum-ion battery pack, and so nothing to worry about providing you don't leave there for months with no use.
If you leave the charger plugged in and it's a good quality charger, it may periodically do a top-up charge to counteract this. OTOH, it might not be a micropower standby product, and there's always a minisule extra fire risk (probably significantly less than from the lithum-ion battery itself though).
Reply to
Andrew Gabriel
Lithium batteries have negligible self discharge. Unfortunately they do wear out just sitting there whether used or not, more quickly than NiCD and NiMH cells do.
Reply to
James Sweet

Site Timeline

Related

  • $3 battery charger

  • 3 Dollar lead acid Battery...

  • Onan 48S-6 battery charger

  • hello,i have just got hold of a Onan WW2 battery charging set.Model no....

  • UW Taschenlampen mit 18650 (26650) Li Ion Akkus

  • Bedienungsanleitung/Infozettel/WWW InformationsLink? gint es nichts "...

  • Microprocessor to battery charger

  • I'm working on making a microprocessor controlled battery charger. I...

  • Li-Ion / Li-Poly charging

  • Hi,I have a "Hobbico Quick Field Charger Mk II". The ads and the guy in the...

  • Battery Charger

  • I'm new to electric models and am looking for a good battery charger - I...

  • li ion batteries

  • i have a digital slr camera which uses a Li-ion battery. i want to get an extra...

  • Dropper in 110v dc system battery charger

  • i have a single line (one line) diagram.you can see in...

  • battery charger

  • I often put a discharged dewalt or flashlight battery on the charger and then...

  • Battery charger...

  • I almost feel silly asking such a simple question, but I wanted someother...

  • Battery Charger

  • What are adjustment procedures on Battery Charger? will some one help.

  • Li-Ion / Li-Poly ?!

  • Hallo NGBis vor ein paar Tagen war meine (kleine) Welt nochin Ordnung -...

  • Battery charger

  • Some time ago, I bought a 1940's style battery charger at a Wessex SEC...

  • Battery Charger

  • Hello everyone. I really enjoy reading this group and have learned alot from...

  • Li Ion Batteries

  • Does anyone make a "Voltage Watch" type of monitor for 7.4 volt Li Ion...

  • Li-Ion carico

  • Salve a tutti!Volevo sapere il carico che possono sopportare le celle Li-ion. E...

  • Li-ion question

  • I have a few Li-ion batteries.For long term storage should they be fully...

  • Li-ion

  • Witam Mam pytanie dotycz±ce ogniw li-jon. Gdzie mogê je kupiæ najtaniej....

  • Li Poly - Li Ion?

  • Na allegro sa nowe ogniwa Li-ion (te¿ cylindryczne, laptopowe) za 20z³ ...

  • li-ion pack

  • hi allI'm doing some experiment with cheap li-ion cells (actually for...

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.