Eneloop charger overcharging cells?

[SilentK]

Yesterday, i charged a batch of 4 eneloops from around 35% charge. (Rough estimate) So today, i decide i want to see what voltage on is, roughly 24 hours later. I pull out my DMM, and check one of the cells. It reads 1.718 volts. I decide to see about the rest of them, and they are all pretty much the same, at over 1.7 volts. A few more cells that have been off of the charger for about 4 days read around 1.55. Is this normal for all chargers, or did i just get a lemon? I have a pair charging right now, so i will see what they are hot off the charger.

 

[Black Rose]

Which model of Eneloop charger?

 

[SilentK]

The 4 bay one. Model: NC-MQN06U

 

[zipplet]

Can you check your DMM to see if the battery is any good? My fathers DMM reads voltages too high when the 9V battery is almost depleted.

 

[Black Rose]

The MQN06 is one of the lesser Eneloop chargers since it needs to charge cells in pairs.

Take a look at this post regarding it. It does mention overcharging.

 

[Mr Happy]

Even so, an eneloop cannot read 1.7 V. Check with a different meter.

 

[zipplet]

Even so, an eneloop cannot read 1.7 V. Check with a different meter.

+1 here. It would be venting at this point, hence my earlier post

 

[TranceAddict]

the MQN06 is trickle charger, it doesn't have a -DELTA cut off, but not sure after the timer cut-out, will it keep small current trickle charging.