Question about rechargeable batteries (Page 3): Depends. Although the voltage of NiMH is lower, the internal resistance is also lower, so heavier loads, such as flash units (which are...

TriX Loc: Raleigh, NC

delder wrote:

It should be noted that AA rechargeable cells in most chemistries are limited to 1.2/1.25 VDC output.
A FRESH Alkaline Cell will read 1.6 VDC open circuit.
Much equipment will not achieve optimal performance @ the reduced voltage.

Depends. Although the voltage of NiMH is lower, the internal resistance is also lower, so heavier loads, such as flash units (which are one of the main uses in photography) may actually recycle faster. Also the discharge curve is flatter than Alkaline.

Leland22 Loc: Texas

I use eneloop exclusively but I use a charger by La Cross. Allows you to discharge and refresh if needed. When a battery gets pretty bad, I do it twice to bring it back to full power.

rlv567 Loc: Baguio City, Philippines

TriX wrote:

Depends. Although the voltage of NiMH is lower, the internal resistance is also lower, so heavier loads, such as flash units (which are one of the main uses in photography) may actually recycle faster. Also the discharge curve is flatter than Alkaline.

I have an IR thermometer - for temp readings re CCP virus. It will not work on rechargeable batteries! At first, I thought it was defective, but the supplier informed me otherwise.

Loren - in Beautiful Baguio City

delder Loc: Maryland

Thank you for the Graphic!

One could go crazy plotting each device against the Battery Sweet Spot for the given chemistry!
In the day we had Handheld CB sets with a 10 Cell holder for Ni-Cad's. 2 jumpers were provided for Alkaline Cells
so that you would get 12 VDC either way.

IF your equipment will work @ 1.2 volts, the Rechargeable Batteries are an economic choice.

Ollieboy

jdubu wrote:

I totally agree about the Ikea Ladda and Eneloops. I use a lot of them and have more Laddas than Eneloops, mainly because of price and the fact they are both made by Fujitsu out of the same factory and have similar test results.

👍👍

Abo

The charger plays a critical roll in the longevity (or lack of)
of rechargeable batteries. Chargers are not created equal!

TriX Loc: Raleigh, NC

rlv567 wrote:

I have an IR thermometer - for temp readings re CCP virus. It will not work on rechargeable batteries! At first, I thought it was defective, but the supplier informed me otherwise.

Loren - in Beautiful Baguio City

Yep, depends on the device. I use Eneloops in every device in my house that requires AA or AAA batteries and have had no issues with any, but I’m sure there are some that are so supply voltage sensitive that it matters. If your device will function on rechargeables, then the advantage, other than cost (Alkaline batteries have become fairly expensive), is I have never had one leak, which by their nature, eventually almost all Alkalines do. That alone is a good reason to use them when feasible.

BebuLamar

Generally I don't use NiMH for application where the current draw is small. The self discharge rate of the Eneloops is impressive for NiMH but still no where as long as alkaline for low current draw application. However, in recent years I have experience many leakage from alkaline batteries of all brands (Duracell, Engerizer and Rayovac) I am rethinking this. Don't tell me to remove the batteries because many of the devices I have must have batteries to retain their memory.

BebuLamar

TriX wrote:

Yep, depends on the device. I use Eneloops in every device in my house that requires AA or AAA batteries and have had no issues with any, but I’m sure there are some that are so supply voltage sensitive that it matters. If your device will function on rechargeables, then the advantage, other than cost (Alkaline batteries have become fairly expensive), is I have never had one leak, which by their nature, eventually almost all Alkalines do. That alone is a good reason to use them when feasible.

I have the problem using NiMH in the Nikon F5. With 8 AA NiMH the voltage when fully charge is close to 12V and it works OK but after using it just a little the voltage drops to 1.2 or 1.25 per cell and the F5 indicates a low battery situation. I found that the F5 indicates low battery if the voltage is below 10V. I managed to add another cell onto the battery holder but it only helps a little. I believe the MN-30 battery pack (which is NiMH) has something like 14 cells in it.

Rab-Eye Loc: Indiana

TriX wrote:

Yet another vote for Eneloops. I have probably 25-30 and have been using them for years with never a failure.

👍🏻👍🏻👍🏻

frankraney Loc: Clovis, Ca.

Jack47 wrote:

I have been using EBL batteries for awhile but I’m a little disappointed in the time that they hold a charge and the time it takes to charge them. I have 8 in the charger right now and they have been there for almost 8 hours. They probably only have about 12 charges on them. What are you using and do you have good or bad things to say? Appreciate all feedback.

Envelope batteries and charger....

Sidwalkastronomy Loc: New Jersey Shore

I'll have to look into these. A lot to chose from

Don's Leica Loc: Asheville, NC

My wife is returning to Amazon an IASOBLI rechargeable battery for Dyson V7 vac. It was made in China and did not work well.

BebuLamar

Don's Leica wrote:

My wife is returning to Amazon an IASOBLI rechargeable battery for Dyson V7 vac. It was made in China and did not work well.

But the Dyson Vac and its original battery are also made in China I believe.

TriX Loc: Raleigh, NC

There is a lot of electrical/electronic junk coming out of China - not everything, but some. I have found outlet strips sold at Lowes (no UL sticker of course) where the hot and neutral were reversed which means the switch and CB doesn’t interrupt the hot side, just the common/neutral. I have disassembled Chinese made lighting where the fuse and switch were in the common/neutral side as well. The net-net is I am very careful what I buy where electrical safety is concerned if it comes out of China and that especially concerns batteries and chargers (seen one LiPo fire, and that’s enough). I know this is a generalization and someone is going to tell me that Chinese goods are just as good as Japanese or American as long as the QA is the same, but the consumer has no way of verifying the QA except the reputation of the company (maybe). BTW, Eneloops are made in Japan and NiMH technology.