How do they make 1.5V Li-ion AA Batteries? [XTAR]

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Get the XTAR Li/NiMH AA/AAA Battery Charger here: amzn.to/3rCnDpc
And XTAR 1.5V AA Batteries: amzn.to/46eCsgP
Li-ion batteries are nominally 3.7V or so. So they have to do a bit of conversion and Alkaline cell mimicking in order to turn it into a 1.5V cell. The way this is done is a converter inside but they also added a 5V charging system so that it can be recharged quickly. Internally, it even has a green led that blinks a few times when the battery is low. The output voltage is lowered when it is less than 20% as well. The advantage of these Li-ion cells over NiMH is that they have slightly higher capacity and no memory effect. You do need a specialized charger specifically for li-ion 1.5V cells.
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Опубликовано:

8 окт 2023

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Комментарии : 52

@shenmisheshou7002 Месяц назад

My guess is that the battery has a built in protection circuit. The drop to 1.2v is there to tell you the battery is running out and my guess is that the battery never actually completely runs out, and that it just shuts down when the voltage drops to the point where they want to stop it from being discharged. This is the way to do it. Many 21700 and 13650 batteries are "protected" and the circuitry in them does the same thing. The battery won't let you discharge it to the point where it is damaged. That is my theory, the 1.2 step is your warning that the over-discharge protection is getting ready to kick in.

@mrtdiver 6 месяцев назад

I bought these too. Every time I checked them they were at 1.5V, so it's good that you explained this.

@micnolmadtube 18 дней назад

One important info you didn't mention is the self discharge rate when on the shelf. I have seen quite a few of these over the years where the circuit will discharge the cell inside to zero killing it.

@danieljohnson3328 5 месяцев назад

Very informative! Thank you.

@johnm2012 3 месяца назад

I was looking for information about single use lithium AA cells (such as those made by Energizer), which also output 1.5 volts, but it was interesting to see this type of rechargeable cell with built in buck converter. I've seen other brands that come with a micro USB charging socket on the side of the package.

@hasanm843 3 месяца назад

Thank you for the details

@Twomoredays 5 месяцев назад

Thanks for the explanation.

@EmperorTerran 4 месяца назад

so much good info and work put in

@BeatTheBushDIY 4 месяца назад

Glad it was helpful!

@razeris3519 6 месяцев назад

I’m glad I found this video I was looking at 1.5 rechargeable batteries for my quest controllers, and most of the 1.5 rechargeable batteries just go from 100% to 0% so the VR headset battery indicator for your controllers will read 100% and then it just will drop to zero and die, with these the headset should tell you when they’re low instead of just dying all of a sudden theoretically.

@keithcress1335 Месяц назад

Great Vid! I was wondering how they got 4V Li-Ion down to 1.5V. Thanks for solving the puzzle for me.

@BeatTheBushDIY Месяц назад

Glad I could help!

@paulcrescenti5581 16 дней назад

Great information. Thanks for making this video.

@BeatTheBushDIY 16 дней назад

Glad it was helpful!

@-MrDontCare- 29 дней назад

I love that they just shut down when they are done. I hate the slow dimming of the old batteries.

@tatovargas596 Месяц назад

I got a set of these batteries and been using it with ISDT A8 Air charger, they work amazing!

@BeatTheBushDIY Месяц назад

Oh wow... I didn't know such things exists! I'm a sucker for this excessive info stuff with the wireless charging monitor on individual batteries! Looks great!

@user-rk2sy8df4s 8 месяцев назад

Nice! How long have you used these batteries? Any fails?

@charlesk44 26 дней назад

I don’t know if it still happens but batteries were always advertised in days gone by at their 10 hour discharge rate. All earlier batteries have a higher capacity if discharged slowly. Good for advertising how good your batteries were as most people didn’t know that.

@PhilippeDHooghe Месяц назад

Well done!! Great informative video, thank you. For low drain applications like remotes, I never use alkaline. They leak and destroy your equipment. I use non-rechargeable lithium cells. These last forever (about 10 years or so) and never leak. Alkalines should be forbidden.

@armands672 5 месяцев назад

Great explanation. I like the fact there is low power simulation instead of just go to 0% for Xtar. Do you find other battery brand with more slope down to indicate low batt?

@BeatTheBushDIY 5 месяцев назад

I haven't seen one that does this just yet.

@crashingsux 5 месяцев назад

I'd love to see you do a video on the coast Zithion-X batteries. They are very similar I think but they mimic an alkaline voltage curve as you mentioned you would like in your video.

@BeatTheBushDIY 5 месяцев назад

Noted and looking into it. Thanks for alerting me to this cool battery.

@fulloftwit Месяц назад

@@BeatTheBushDIY I would also like to see a review on the Coast ZITHION-X.... I've been looking at buying some envelopes Ni-Mh for some flashlights and discovered the li-on 1.5 batteries and Coast seems to be the newest & greatest

@AdamHelb 24 дня назад

The other advantage of these batteries is they don't leak, unlike alkaline batteries that area prone to leakage when discharged.

@crashingsux 24 дня назад

@@AdamHelb I've been using mine 4 months now and still happy with them. This style needs to catch on.

@GuardianOfRlyeh 4 месяца назад

I would be interested in the noise these batteries produce in the RF field. I bought some Hixon batteries and wanted to put them in my weather station to replace alkaline ones - but the receiption of the time and weather signals over DCF77 protocol (77 kHz broadcast here in Europe) got so bad that no data could be retrieved from that signal. Changed back to normal batteries and it works perfectly again.

@BeatTheBushDIY 4 месяца назад

That's a very specific but understandable request. I'll see if I can do a spurious emissions sweep on these next time I review this type of batteries and throw in this product while I'm at it.

@GuardianOfRlyeh 4 месяца назад

@@BeatTheBushDIY nice, thank you! You got a new subscriber so I'm not gonna miss it ;)

@richardmerriam7044 Месяц назад

@@BeatTheBushDIY These batteries will block MW/AM signals due to the noise generated by the stepdown circuitry. I use my Hixon batteries only for electric candles.

@curtchase3730 Месяц назад

@@richardmerriam7044 Ahh, someone with RF issues? Yep, I tried some EBL branded ones in my portable transistor radio. Completely knocked out both AM (MW) and FM! I complained to EBL and they refunded my money! Oh, just hold one these Lithium batteries up to the antenna of an AM radio and tune the dial.

@MarkUnique 8 месяцев назад

How do you like these vs. Tenavolts?

@BeatTheBushDIY 8 месяцев назад

Tenavolts seems to not have a slight drop in output voltage to warn of low battery.

@mohgujai Месяц назад

I have an XTAR VC4 charger, which can charge 18650's and AA's etc, will that be able to charge these batteries? I mean if they're basically just Li Ion inside...

@AdamHelb 24 дня назад

No. That charger is meant for NiMH and regular Li Ion 3.7 v batteries.

@sourcerpanman 3 месяца назад

I've been fascinated with these li-ion batteries for some time now... why do they say that we aren't allowed to put them into NiMH battery chargers? I thought the chargers all just give a 5V 2A input so it should work vice versa right? I have a modded "toy" that I added a 5V 1A USB-C charger to and is wondering if these batteries work for it...

@BeatTheBushDIY 3 месяца назад

Internally Li-ion and NiMH charges at different voltages. There are internal circuitry that makes the 3.7V nominal Li-ion battery appear like a 1.2V and how they charge it depends how they designed the charger/battery system.

@okaro6595 Месяц назад

It is the input I the charger that matters but the output. The input of course is 5 V as it is USB. This is a completely new and different technology so I do not see why anyone could have an expectation that one could use old chargers.

@vevenaneathna 8 месяцев назад

hehe. finally found the lifepo4 batteries. i just charge mine with a bench power supply. since theyre basically exactly double alkaline voltage, its pretty easy to bridge 2 contacts or change the batteries from series to parellel with a wire and a spacer or something in the battery compartment. I think i end up getting about 70% of capacity as alkaline batteries. they are a little bit hard to find, had to use weird words like "solar AA battery." found some "9v" which were labeled lifepo4 but ended up being 2x lipol @8.4-ish volts. close enough...

@StanielBG 28 дней назад

I think the lack of voltage discharge curve is a good thing.

@BeatTheBushDIY 27 дней назад

Depends on what you want. Gradual decrease in voltage can be an indicator of charge.

@StanielBG 27 дней назад

@@BeatTheBushDIY Full power for longer is more useful, while you don't know how much power is left, you have the device working fully, all the time. Also you can always have some spares in case.

@vegetablepolice1 11 дней назад

looks great for use in xboxone controllers

@clam4597 24 дня назад

They don't leak but can bust into fire.

@ottospoelstra2481 4 месяца назад

Look for Kerry Wong

@CLINTSTER77COX 5 месяцев назад

Nimh only have 1.2v

@BeatTheBushDIY 5 месяцев назад

Agreed

@hodlr8489 24 дня назад

I may have missed something, you never explained why it's not worth it unless absolutely need it. The Batteries are about 8 ea CAD amd can be used 1200 times. Equals $0.006 a battery in its lifetime. Vs Duracell is $1.00 each if you buy the 30 pack from Costco. Seems like a no Brainer.

@clam4597 24 дня назад

You can't use it in multiple places at the same time. Li-on degrade over time. They tend to get lost over time.

@BeatTheBushDIY 24 дня назад

For a device that has low usage such as replacement once a year, you may only replace it 10 times in its lifetime. Hence leaving an $8 battery in there doesn’t make sense. That’s $3.50 vs $8