Looking to replace my rechargeable NiMH batteries with rechargeable lithiums. I hate the NiMHs as they do not retain their charge for more than a about a month and am looking for something that will last. As I understand it, the lithiums will maintain their charge for years and that's what I'm looking for.

Question is: Is any one brand better than any other or are they all pretty much the same?

Looking at AA, AAA, C, and D.

Energizer for me. Mainly for stuff that gets used in cold weather.

quote:

Originally posted by YooperSigs:
Energizer for me. Mainly for stuff that gets used in cold weather.

I don't think that they have a rechargeable lithium model though do they?

I dont know if they offer rechargables or not. I use the standard.

Rechargeable lithiums will usually have a different voltage than rechargeable NiMH cells (3.7v vs. 1.2v). Have you considered rechargeable NiMH cells which have very low self discharge characteristics? Those are the ones I buy and they typically only lose 10 or 20% of their charge per year. Candlepower forum has lot of useful info on battery types, manufacturers, etc.

I have Tenergy ones (NiMH). They were billed at the time as being one of the best, but they suck for holding a charge. I wasn't aware of the different voltages. It seems that that would not play well with sensitive electronics.

^^^^^
These Philips rechargeable lithium batteries are 1.5V:

https://a.co/d/02cypwhT

I have AA and AAA Eneloop which are Low Self-Discharge NiMH. I use the Eneloop regular as all of my stuff is every day low drain items (e.g. wireless keyboard) not high discharge (e.g. flashlight which is what the Eneloop pro is designed for). They're the gold standard and hold their charge a very long time. Therefore, I've never had the need to purchase lithium rechargeables.

Eneloop regular verse pro brings up a good point. There are two styles of NIMH rechargeables and you'll be disappointed if you purchased the wrong style for your application (e.g. Eneloop pro for a keyboard since it has a higher self discharge).

quote:

Originally posted by tsmccull:

Rechargeable lithiums will usually have a different voltage than rechargeable NiMH cells (3.7v vs. 1.2v).

Amazon is showing a gazillion choices of rechargeable 1.5 volt lithium batteries.

https://www.amazon.com/s?k=rec...314&ref=sr_nr_p_85_1

We have some tenergy and basically stopped using them to replace with eneloops which as stated have a lower self discharge rate. They are 1.2 volts rather than the 1.5 volts of alkaleaks. Many devices don’t care, but I found out the hard way (in the LA basin on a busy day) that my Lightspeed ANR (Active Noise Reduction) aviation headset was not one of those devices. It was close to impossible to hear the controller through the noise until I finally twigged and turned the ANR off. I’m a huge fan of anything that isn’t alkaleaks. Eneloops are great in devices that don’t mind the voltage difference.

quote:

Originally posted by V-Tail:

quote:

Originally posted by tsmccull:

Rechargeable lithiums will usually have a different voltage than rechargeable NiMH cells (3.7v vs. 1.2v).

Amazon is showing a gazillion choices of rechargeable 1.5 volt lithium batteries.

https://www.amazon.com/s?k=rec...314&ref=sr_nr_p_85_1

There are several types of lithium battery chemistries, but almost all have nominal voltages between 3.2 and 3.7 volts due to the chemistry. To make a 1.5 volt battery from that, the batteries will typically incorporate boost or buck converters in each cell giving outputs from 1.5 to 9 volts to match alkalines or NiMH. It can be done, but makes for a complex and expensive battery compared to using a battery in its native mode based on its chemistry. If you can find one that’s reliable and performs well, I’d stick with that specific manufacturer and not assume that other brands will do as well.

quote:

Originally posted by V-Tail:
Amazon is showing a gazillion choices of rechargeable 1.5 volt lithium batteries.

https://www.amazon.com/s?k=rec...314&ref=sr_nr_p_85_1

Precisely why I posed the question.

Just curious if folks have had good experiences with one vs. the other(s).

Eneloops for me. I did find after about twelve years the battery life was shorter than desired.

quote:

Lithium batteries

Question is: Is any one brand better than any other or are they all pretty much the same?

Energizer and Duracell are what I use and are equal.

Duracell has lost me forever after ruining several electronics and lights with leaking alkaline batteries.

I just buy the non rechargeable Energize Lithium


They claim a 25 year shelf life

quote:

Duracell has lost me forever after ruining several electronics and lights with leaking alkaline batteries.

^^^^^ This!!! Preach it, brother!

Comparing alkaline to lithium batteries is like comparing lemon to orange. I’ve had both alkaline Energizer and Duracell leak. OP is asking about lithium, not alkaline, batteries.

I wasn't comparing them, just pointing out that I won't buy Duracell because of leaking. Energizers have not leaked

I have a claim filed with Energizer due to alkaline batteries leaking and ruining yet another flashlight.
It’s explosion proof so it’s not a $2.99 cheapo.

ALL alkaline batteries can leak.
When I want to insure that any device will run when it needs to, it has lithium batteries in it.

quote:

Originally posted by BigSwede:
I wasn't comparing them, just pointing out that I won't buy Duracell because of leaking. Energizers have not leaked

Well, you talked about Duracell alkaline leaking. Then mentioned buying Energizer lithium. What? Didn’t say anything about Energizer alkaline leaking or not leaking.