X-tar WPII flashing LED's

[DiscoDes]

I put a couple of 18350's on to charge this morning, the battery in channel 1 has charged fine in channel 1.
But the LED is flashing SLOWLY from red to green battery in channel 2. Setting is at 500mA charge. I've looked at the instructions but can't see any reference to this, does anyone know what it indicates?

[chrisjw]

Not sure what that can be Des.......as far as I'm aware the LED should either show red or green, not flashing.............could be a problem with the charger...Have you checked the terminals are clean?

[syycoe]

is the battery below 3v if so it may be the charger going into trickle mode to try and get it above 3v,not my diagnosis just what i have googled and a few posts have said this

[DiscoDes]

Jun 11, 2013 12:40:16 GMT syycoe said:

is the battery below 3v if so it may be the charger going into trickle mode to try and get it above 3v,not my diagnosis just what i have googled and a few posts have said this

No I just measured it with my digital multimeter and it measures 3.77v : This is after about 5 hours on charge.

[Bluefish]

Jun 11, 2013 12:46:05 GMT DiscoDes said:

Jun 11, 2013 12:40:16 GMT syycoe said:

is the battery below 3v if so it may be the charger going into trickle mode to try and get it above 3v,not my diagnosis just what i have googled and a few posts have said this

No I just measured it with my digital multimeter and it measures 3.77v : This is after about 5 hours on charge.

Ok, well i was thinking maybe it's nearly charged and flickering but if it's only at 3.8 then it's not that, maybe time for a new charger des?

[DiscoDes]

Jun 11, 2013 17:36:24 GMT Bluefish said:

Jun 11, 2013 12:46:05 GMT DiscoDes said:

No I just measured it with my digital multimeter and it measures 3.77v : This is after about 5 hours on charge.

Ok, well i was thinking maybe it's nearly charged and flickering but if it's only at 3.8 then it's not that, maybe time for a new charger des?

No I don't think so, the other battery charged fine and I swapped the battery over that was flashing and the other channel then flashed. So I am thinking that the 18350 has given up the ghost.

I was hoping someone would say "Oh yes, a slowly flashing led means........."

[grim]

O yes a slow flashing led means . . . . . sorry I don't know either. But i did say it!

[DiscoDes]

Jun 11, 2013 18:29:54 GMT grim said:

O yes a slow flashing led means . . . . . sorry I don't know either. But i did say it!

Tease-smiley

[Bluefish]

Yeah it means the battery is knackered mate, try it on the other channel then if that don't work dispose of it responsibly

[Roger]

DiscoDes I had the same happen with those 18350's that came with the Vamo. They were knacked. Measured at about 3.8v, put in a device and straight down to 3.0v, charger (same one) did slow flashes.

[DiscoDes]

Jun 12, 2013 11:01:41 GMT Roger said:

DiscoDes I had the same happen with those 18350's that came with the Vamo. They were knacked. Measured at about 3.8v, put in a device and straight down to 3.0v, charger (same one) did slow flashes.

Roger that's the conclusion I came to, I was just wondering where it's mentioned in the Xtar instructions, as I could not find it

[Roger]

It's not, as far as I can see, but I found this on a battery forum!!!

A bad cell with super high internal resistance, where a 100mA charge current results in a voltage drop of at least 0.3V. So the cell may be resting at 3.9V, when a 100mA current is applied, the cell voltage rises to 4.20V and causes a termination of charge, which means the voltage very quickly falls back to its resting 3.9V, which is the charger re-start voltage. And the cycle keeps going.

Makes a bit of sense that.

[DiscoDes]

Jun 12, 2013 11:08:31 GMT Roger said:

It's not, as far as I can see, but I found this on a battery forum!!!

A bad cell with super high internal resistance, where a 100mA charge current results in a voltage drop of at least 0.3V. So the cell may be resting at 3.9V, when a 100mA current is applied, the cell voltage rises to 4.20V and causes a termination of charge, which means the voltage very quickly falls back to its resting 3.9V, which is the charger re-start voltage. And the cycle keeps going.

Makes a bit of sense that.

Yup, makes sense to me.

[Toondog]

Same happened to me Des, same charger. Dodgy batt.
Chris.

[DiscoDes]

Jun 12, 2013 23:11:55 GMT Toondog said:

Same happened to me Des, same charger. Dodgy batt.
Chris.

Cheers Chris, it has gone to battery re-cycle heaven.