dant Posted June 17, 2014 Share #1 Posted June 17, 2014 Advertisement (gone after registration) I am confused with all the lights on the M240 charger. When both lights come on I leave it longer. But I don't know how long to leave it and am worried about overcharging. Is there a correct way to use the charger to get 100% charge but not to overcharge? Thanks Link to post Share on other sites More sharing options...
Advertisement Posted June 17, 2014 Posted June 17, 2014 Hi dant, Take a look here How do you use the M240 charger correctly?. I'm sure you'll find what you were looking for!
250swb Posted June 17, 2014 Share #2 Posted June 17, 2014 When both lights are on it is fully charged. Steve Link to post Share on other sites More sharing options...
bocaburger Posted June 17, 2014 Share #3 Posted June 17, 2014 Manual says to unplug it when both lights are lit constantly, but also says it can't overcharge if you leave it plugged in. That stands to reason, otherwise you'd need to babysit the charger, couldn't put it on charge and go to bed for example. Link to post Share on other sites More sharing options...
swamiji Posted June 17, 2014 Share #4 Posted June 17, 2014 I think the circuitry is roughly the same as the M9 charger. I have two M240 & M9 chargers. One of each for travel and one of each constantly plugged in on my desk. The desk M9 charger has been plugged in since 2009, and the desk M240 charger has been plugged in since I got the M240, last year. I don't think the charger is doing anything until a battery is inserted and the circuit is complete. So when a battery is drained, I put it in the charger. When I notice it's charged, I take it out. Simple I have never had a failed charger or battery yet, including my M8 batteries.., Link to post Share on other sites More sharing options...
farnz Posted June 18, 2014 Share #5 Posted June 18, 2014 … I don't think the charger is doing anything until a battery is inserted and the circuit is complete. ... When the charger's plugged into the wall the primary side of the step-down transformer is connected to the mains grid so there will be a trickle of current being used even if no battery is inserted. The amount of current will be controlled by the charger's internal impedance, which should be high to reduce the current drawn in its quiescent (unused) state. It might increase your monthly bill by a few pennies. When a battery is inserted it completes the transformer's secondary windings' circuit, which will draw more current through the primary circuit to charge the battery. Pete. Link to post Share on other sites More sharing options...
swamiji Posted June 18, 2014 Share #6 Posted June 18, 2014 3 pennies x 12 months x 5 years = $1.80 Hmmm Link to post Share on other sites More sharing options...
algrove Posted June 20, 2014 Share #7 Posted June 20, 2014 Advertisement (gone after registration) OP Read the manual Link to post Share on other sites More sharing options...
Peter H Posted June 21, 2014 Share #8 Posted June 21, 2014 OP Read the manual "RTFM" as one of the wiser elders here once said. Link to post Share on other sites More sharing options...
pop Posted June 21, 2014 Share #9 Posted June 21, 2014 How does the Kama Sutra help here? Link to post Share on other sites More sharing options...
Echo63 Posted June 21, 2014 Share #10 Posted June 21, 2014 Green light flashes when charging. Orange light comes on and flashes with the green one when battery is 80% charged Both lights are on solid when battery is fully charged. Simples I don't use my charger much though, the battery has pretty good life (I don't use LV, and don't check the screen all that often) Link to post Share on other sites More sharing options...
Exodies Posted June 22, 2014 Share #11 Posted June 22, 2014 I wonder why they thought it useful to tell us that the battery was 80% charged but left it rather vague as to when it was fully charged. Link to post Share on other sites More sharing options...
pop Posted June 22, 2014 Share #12 Posted June 22, 2014 I wonder why they thought it useful to tell us that the battery was 80% charged but left it rather vague as to when it was fully charged. They did not. It is fully charged when the lights tell you so. Link to post Share on other sites More sharing options...
Exodies Posted June 22, 2014 Share #13 Posted June 22, 2014 Mine doesn't. It just says "charge" and "80%". Link to post Share on other sites More sharing options...
pop Posted June 22, 2014 Share #14 Posted June 22, 2014 The green LED marked CHARGE starts flashing to confirm that charging is in progress. As soon as the battery has charged to at least 4/5 of its capacity, the yellow LED marked 80% also lights up. When the battery if fully charged, the green LED also changes from flashing to continuously lit. When the battery is fully charged, the green LED changes from flashing to continuously lit. When it is continuously lit, the battery is fully charged. The green LED is the little light labelled "Charge" which turns on and off while the charger is loading the battery. Does your copy work differently from that? Link to post Share on other sites More sharing options...
jdlaing Posted June 22, 2014 Share #15 Posted June 22, 2014 Mine doesn't. It just says "charge" and "80%". RTFM. Link to post Share on other sites More sharing options...
Herr Barnack Posted June 22, 2014 Share #16 Posted June 22, 2014 I read "TFM" and it was not clear to me regarding charging the battery, either. Since I was born and raised in an English speaking nation and I am not daft/slow/ignoant/illiterate/stupid, I would suggest that perhaps the problem lies elsewhere - possibly as in the translation of a German written manual to English by a person who is not exactly fluent in English. Just a suggestion... Link to post Share on other sites More sharing options...
farnz Posted June 22, 2014 Share #17 Posted June 22, 2014 ... and I am not daft/slow/ignoant/illiterate/stupid, ... "ignoant"? Sorry, Carlos, I couldn't ignore that particularly unfortunate typo.:p Pete. Link to post Share on other sites More sharing options...
pop Posted June 22, 2014 Share #18 Posted June 22, 2014 I read "TFM" and it was not clear to me regarding charging the battery, either. Since I was born and raised in an English speaking nation and I am not daft/slow/ignoant/illiterate/stupid, I would suggest that perhaps the problem lies elsewhere - possibly as in the translation of a German written manual to English by a person who is not exactly fluent in English. Just a suggestion... I did quote the English manual just a few posts before. In what way is that not clear to you? Link to post Share on other sites More sharing options...
Exodies Posted June 23, 2014 Share #19 Posted June 23, 2014 Perhaps it's because vagueness is relative. Try this: A) charging light goes on when battery is inserted and power is present. 80% light goes on (well, you can imagine when). 100% light goes on and other lights go off when fully charged. RTFM for how it works now. Which of A or B produces the least vague message? The last sentence of the manual as quoted above only makes things worse (I mean the if/is typo). Link to post Share on other sites More sharing options...
Berth Posted June 23, 2014 Share #20 Posted June 23, 2014 When the battery is fully charged, the green LED changes from flashing to continuously lit. When it is continuously lit, the battery is fully charged. The green LED is the little light labelled "Charge" which turns on and off while the charger is loading the battery. Does your copy work differently from that? I've been charging batteries, golly, for 10 years? A Canon 20D. Much longer if I count my Norelco razors. My M-E didn't seem too complex, when I bought the camera I put a battery in the charger and plugged it in. Before even unpacking the manual. First thing I saw was one flashing light, after a while I noticed a 2nd light marked 80% alerting me it was close to full. Then it changed to two steady lights. I interpreted the last to mean it was fully charged. Really tough challenge. Link to post Share on other sites More sharing options...
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