eneloop vs old charger I would like to know if i can use this panasonic charger , model BQ-390 quick charger for eneloop batteries or similar products
68969
The eneloop (and other low-self-discharge cells) can be charged using any 'smart' charger, such as the Panasonic BQ-390.
163123
As a general rule, all fast charger (meaning charge time less than 4 hours) has to be 'smart', while most slow chargers (charge time longer than 6 hours) are 'dumb'. This is because NiMH can be safely over-charged at lower rate (0.1C to 0.2C) without immediate danger, although the damage will build up over time. On the other hand, over-charging at higher rate such as 1C will lead to rapid heating, which can be dangerous. Therefore a fast charger must have circuits to monitor battery status, and stop charging when the end-of-charge signal is detected (negative dV/dt, delta-temperature rise, etc) As a general rule, all fast charger (meaning charge time less than 4 hours) has to be 'smart', while most slow chargers (charge time longer than 6 hours) are 'dumb'. This is because NiMH can be safely over-charged at lower rate (0.1C to 0.2C) without immediate danger, although the damage will build up over time. On the other hand, over-charging at higher rate such as 1C will lead to rapid heating, which can be dangerous. Therefore a fast charger must have circuits to monitor battery status, and stop charging when the end-of-charge signal is detected (negative dV/dt, delta-temperature rise,... » Read More As a general rule, all fast charger (meaning charge time less than 4 hours) has to be 'smart', while most slow chargers (charge time longer than 6 hours) are 'dumb'. This is because NiMH can be safely over-charged at lower rate (0.1C to 0.2C) without immediate danger, although the damage will build up over time. On the other hand, over-charging at higher rate such as 1C will lead to rapid heating, which can be dangerous. Therefore a fast charger must have circuits to monitor battery status, and stop charging when the end-of-charge signal is detected (negative dV/dt, delta-temperature rise, etc) « Show Less
163124
NLee, I think Amazon should pay you for providing such great info on their site! :-) Thanks.
163125
Yeah, I almost balked at the 'must charge in pairs' requirement when I made the buy a few weeks ago, but the price was right, and 2 out of my 3 uses for the batteries will be in pairs. The third device uses 3 AA, so I'll have to figure that one out. Thanks, again for the info!
163126
I have an old VTech model ev2653.The original batteries supplied with the handsets were rated 1.2v, 600mAh and werethree individual AAA batteries.As I recall, the manual said to charge the batteries for a minimum of 12 hours prior to using the handsets.I'm wondering if the eneloop batteries would be able to be charged and used in thissystem.
163127
High Flyer,I looked up the user manual for EV2653 cordless phone system. The manual says to charge the included 600mAh AAA cells for 12 hours prior to first use, but subsequent maintenance charge only takes 8 hours. Base on this info, I can safely conclude that it is a dumb charger with a constant current of 75mA.You should be able to use the eneloop 800mAh AAA cells in the handset just fine. However, since the handset is being charged daily, you don't really need low-self-discharge cells in it. Ordinary 1000mAh NiMH cells may actually do better since they can provide longer talk time for the women in the house... No wait, just stick to the eneloop cells in that case. High Flyer,I looked up the user manual for EV2653 cordless phone system. The manual says to charge the included 600mAh AAA cells for 12 hours prior to first use, but subsequent maintenance charge only takes 8 hours. Base on this info, I can safely conclude that it is a dumb charger with a constant current of 75mA.You should be able to use the eneloop 800mAh AAA cells in the handset just fine. However, since the handset is being charged daily, you don't really need low-self-discharge cells in it. Ordinary 1000mAh NiMH cells may actually do better since they can provide... » Read More High Flyer,I looked up the user manual for EV2653 cordless phone system. The manual says to charge the included 600mAh AAA cells for 12 hours prior to first use, but subsequent maintenance charge only takes 8 hours. Base on this info, I can safely conclude that it is a dumb charger with a constant current of 75mA.You should be able to use the eneloop 800mAh AAA cells in the handset just fine. However, since the handset is being charged daily, you don't really need low-self-discharge cells in it. Ordinary 1000mAh NiMH cells may actually do better since they can provide longer talk time for the women in the house... No wait, just stick to the eneloop cells in that case. « Show Less
790803
The Sanyo "low leakage" Eneloops will work in this charger, but a lower current unit (around 200 or 250 mA) will result in a longer total life (more charge/discharge cycles). This Sony does heat up the batteries which will reduce their ultimate life. I have (12) AA Eneloops that I use in Canon 580EX flash heads (very high high peak discharge current) and they seem to be holding up much better than other brands using the LaCrosse BC-900 charger set to 200mA. The Sanyo capacity when new was around 2100 mAH, but has not dropped off as other (higher initial capacity) batteries (LaCrosse and Eveready) have with heavy use. The Sanyo "low leakage" Eneloops will work in this charger, but a lower current unit (around 200 or 250 mA) will result in a longer total life (more charge/discharge cycles). This Sony does heat up the batteries which will reduce their ultimate life. I have (12) AA Eneloops that I use in Canon 580EX flash heads (very high high peak discharge current) and they seem to be holding up much better than other brands using the LaCrosse BC-900 charger set to 200mA. The Sanyo capacity when new was around 2100 mAH, but has not dropped off as other (higher initial capacity) batteries... » Read More The Sanyo "low leakage" Eneloops will work in this charger, but a lower current unit (around 200 or 250 mA) will result in a longer total life (more charge/discharge cycles). This Sony does heat up the batteries which will reduce their ultimate life. I have (12) AA Eneloops that I use in Canon 580EX flash heads (very high high peak discharge current) and they seem to be holding up much better than other brands using the LaCrosse BC-900 charger set to 200mA. The Sanyo capacity when new was around 2100 mAH, but has not dropped off as other (higher initial capacity) batteries (LaCrosse and Eveready) have with heavy use. « Show Less
898290
I was thinking about purchasing Maha PowerEx MH-C801D Eight Cell 1-Hr Charger - Battery charger - 1-2 hr - 8xAA/AAA, but the La Crosse Technology BC-9009 AlphaPower Battery Charger sounds very attractive. I'd like to be able to charge eight cells at a time, but realistically, charging four would be just fine. I do need to be able to charge a single cell, however. I'm trying to convert all my cameras and bicycle lights to low-discharge AA and AAA cells (Eneloops), so I'm willing to invest in a decent charger.Suggestions?
1560938
Yes, although I prefer and most recommend one that has a soft or slow charge, at least as an option for maximum battery life. My MAHA charger, which is around 8 years old, does just fine, but its default mode is fast charge, so I press the "Soft" button when I put the batteries in. I bought these first when they were Sanyo. Now that they're Panasonic, I hope the quality is as good.
1108740
From what I have seen on the internet this unit will blink if it detects a problem with the battery inserted. I presume you are not charging an eneloop battery. It apparently does not like batteries that have been discharged stone cold dead, which in that case you may try charging that battery in one of your older chargers that are not smart for awhile and then this charger may accept the battery. I also saw on the i-net that it did not like some particular brands of batteries.
615693
Besides the change to the name (Panasonic bought Sanyo) and changed the name from XX to Pro as well as the packaging, the only real change is to the number of charge cycles the batteries are rated for (up to 500) and the milliamp (2550 versus 2500 - a bit longer run time between charges). Yes, you can still charge these batteries with your charger or any fast NiMH charger.TammieThomas Distributing
507323
The problem is that most likely the phone charger is a dumb straight, non terminating charger that is completely overcharging the eneloops. I really am annoyed at Panasonic for doing something in their phones such that a completed charged set of eneloops will show up as need to be charged. Stupid. I want to charge my eneloops in my own smart charger, not the dumb phone cradle chargers.
42634
The eneloops may be superior in that their discharge curve shows that they hold their voltage longer than Ni-Mh. Your camera may see the decline in voltage as end of bettery life even though those 2500 ma batteries are still good. The eneloop will hold their voltage longer and possibly result in more actual usage than the older technology.
368200
According to Sanyo eneloop web site:"Eneloop batteries are not limited to Eneloop chargers or any special proprietory charging technology and can be charged using other quality non-Eneloop Nickel Metal Hydride (NiMH) battery chargers."As long as you have a good quality "smart" charger (meaning that it charges each cell individually and stops whenever each cell is full), you can charge the eneloop cells with it. Personally, I would avoid those 15-minute Super-Fast chargers.
2262230
I checked the back of one of my chargers that came with the Eneloop AA/AAA combo pack. It says "INPUT: 100-240v ~ 50-60Hz". I think that means it's OK, but not positive what the Hz part of the quote means.
2154693
I'm using this with rechargeable batteries since around 5 months without any issues. The ones I'm using are from Eneloop (http://www.amazon.com/gp/product/B009LU9150/ref=oh_details_o09_s00_i00?ie=UTF8&ps;c=1), wonderful capacity; charger I'm using is also from Eneloop only (http://www.amazon.com/gp/product/B0058GZWXQ/ref=oh_details_o09_s00_i01?ie=UTF8&ps;c=1)
507327
My guess is that you should be able to charge eneloop AAA cells inside your Panasonic DECT 6.0 phone. The phone only knows that a new set of batteries has been inserted after a power interruption, So it will give you the standard "Please charge phone for 7 hours" message. But it cannot know what type of battery is placed in it. The factory-equipped AAA NiMH cells are probably lower capacity (~600mAh) type. That's why the eneloop AAA (~800mAh) works better. It is safe to use higher capacity batteries in a slow-charger designed for lower capacity batteries..
839216
The Sanyo "low leakage" Eneloops will work in this charger, but a lower current unit (around 200 or 250 mA) will result in a longer total life (more charge/discharge cycles). This Sony does heat up the batteries which will reduce their ultimate life. I have (12) AA Eneloops that I use in Canon 580EX flash heads (very high high peak discharge current) and they seem to be holding up much better than other brands using the LaCrosse BC-900 charger set to 200mA. The Sanyo capacity when new was around 2100 mAH, but has not dropped off as other (higher initial capacity) batteries (LaCrosse and Eveready) have with heavy use.
829549
Yes. I use the OEM charger many times without any problems with the battery. In fact this battery last much longer than the Panasonic OEM battery.
330417
Absolutely. I regularly charge Eneloop and Energizer NiMh batteries with this charger. The key is the chemistry of the batteries. All nickel metal hydride batteries should work fine.
1290563
I'm not sure - these batteries are 2550 mAh and the charger is bundled with 2100 mAh batteries. Good question to ask Panasonic. If have a bunch of the 2500 mAh and use the La Crosse Technology BC-700 Alpha Power Battery Charger. You can slow charge and it shows the charge level. I highly recommend this charger. La Crosse Technology BC-700 Alpha Power Battery Charger
1332542
You may want to check the Panasonic web site for info on alternative chargers but the charger that came with mine was a simply a small base unit with a US 110v plug built into the back so the small cradle plugs directly into the outlet - the only thing that I really did not like about the unit. I would have preferred a base that sat on the counter with a wire running up to the outlet.