Panasonic mt621 watch battery equivalent


What is this rechargeable battery Panasonic mt621?

This rechargeable battery Panasonic MT621 was for replacement in my Citizen Eco world timer Chronograph. The battery which came was a Citizen 295-51 which is an exact equivalent from Citizen. On inserting carefully with small tag properly seated all was perfect.

What are the different types of watch batteries?

Below is a conversion chart, or cross reference guide for the most common watch battery types. Both regular (silver oxide and mercury) and lithium batteries too. Take your watch battery number, look it up on the chart to locate the conversion number.

What does mt621 mean?

MT621 : Coin-type Rechargeable Lithium BatteriesProductCoin-type Rechargeable Lithium BatteriesSeries/TypeCoin type rechargeable lithium batteries (MT series)Parts no: MT621 You need a specific variant of the cell, there are like a couple dozen different versions with differently shaped metal contacts attached to the cells.

What is the life span of the battery of the watch?

The battery which came was a Citizen 295-51 which is an exact equivalent from Citizen. On inserting carefully with small tag properly seated all was perfect. Left for 1 day in daylight to confirm charge. Watch working perfectly now. Life span expected at approx 10 years.


What battery is equivalent to MT621?

Lithium Titanium Button/Coin Cell Batteries – “MT” Watch BatteriesBatteryMT516MT621Nominal Voltage1.5 volts1.5 voltsContinuous Drain Current0.025 mA0.05 mANominal Capacity1.8 mAh2.5 mAhDatasheet (PDF)MT516FMT6212 more rows•Jan 5, 2022

Is MT621 battery rechargeable?

MT621 : Coin-type Rechargeable Lithium Batteries.

How do I know which watch battery I need?

You can look in your owner’s manual for the specific model and watch battery size. Other methods include doing a quick google search with the brand name and model number or opening up the watch to read the number on the battery. 116 and 377 are common watch battery types to look out for.

What battery can I use instead of LR44?

Direct replacements for LR44 would be Duracell 76A, Energizer A76, and AG13 batteries. These batteries are exact equivalents for the LR44 battery, the only difference being the name. These batteries can all be interchanged.

Are watch batteries interchangeable?

All watch batteries are not the same. We have 2 basic types, 1.55 volt silver oxide batteries and 3.0 volt lithium batteries. We stock about 55 different sizes of these 2 types of batteries. A watch movement takes a specific size and type of battery and they cannot be interchanged.

How do I charge my watch battery?

0:262:54Charge any Dead battery in 10 mins – YouTubeYouTubeStart of suggested clipEnd of suggested clipLike this one fully charged battery and you should connect you should connect two wires the one toMoreLike this one fully charged battery and you should connect you should connect two wires the one to the positive positive side and one to the negative side.

Is 377 battery same as SR626SW?

Is Energizer 377 the same as SR626SW? Yes, Energizer 377/376 battery is a 6.8 x 2.6 mm battery based on the silver-oxide chemistry which is equivalent to most SR626SW batteries.

Can I use a 377 battery instead of 364?

Due to the same diameter and very similar height, it is possible to place 364 battery into the 377 battery compartment, and sometimes even vice versa. But, if 364 battery is placed in the 377 battery compartment, contact issues may prevent reliable operation.

What battery is equivalent to 377?

377 Watch Battery SR626SW and equivalent button cell batteries – SR626, SR626W, SR66, D377, V377, AG4, GP377, SB-AW, 377.

Can I use SR44 instead of LR44?

Replacing an LR44 battery with an SR44, or vice versa, won’t damage your electronic device. Unfortunately, the alkaline cell won’t perform as well as the silver oxide, in some electronic devices.

Is CR2032 same as LR44?

Is CR2032 the same as LR44? No, they are not. CR2032 is a very popular lithium 3.0V non-rechargeable 20×3. 2 mm battery, while the LR44 battery is a 1.5V alkaline non-rechargeable 11.6×5.

Can I use AA batteries instead of LR44?

Since LR44 is alkaline, AAs or AAAs are a one to one replacement. Solder the wires, in correct polarity, to the springs that make contact to the LR44. Or you could just strip the wires and twist them around the springs, then insert something in the battery compartment to hold them in place…

What size is a standard watch battery?

A button cell, watch battery, or coin battery is a small single-cell battery shaped as a squat cylinder typically 5 to 25 mm (0.197 to 0.984 in) in diameter and 1 to 6 mm (0.039 to 0.236 in) high — resembling a button.

What battery do most watches use?

The most consistent brands for batteries, are Shinola, Michael Kors and Nixon. All newer watch brands, they use commonly made swiss watch movements, and they use watch battery types, 364, 371 or 377.

What do watch battery numbers mean?

Battery Sizes: The first two digits refer to the diameter of the battery in mm and the second two digits give the height or thickness of the battery in tenths of mm. So, for example, a CR2032 is a Lithium button cell which is 20mm in diameter and 3.2mm thick.

What size battery does my Citizen watch take?

1 LR44 batteries required.

What is Panasonic’s new name?

Accordingly, Panasonic Semiconductor Solutions Co., Ltd., which has been managing Panasonic’s semiconductor business, will come under the umbrella of the Nuvoton Group, with the new name of Nuvoton Technology Corporation Japan (hereinafter referred to as “NTCJ”).

When will Panasonic transfer its semiconductor business?

The semiconductor business of Panasonic Corporation (hereinafter referred to as the “Company”) will be transferred on September 1, 2020 to Nuvoton Technology Corporation (hereinafter referred to as “Nuvoton”).

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What is the most common watch battery?

(Also note that Energizer is probably the most common brand of watch battery sold. P.S. 364 & 379 are the two most popular watch batteries there are, so expect stores to be low on these …

What to do if you can’t figure out the battery on your watch?

If you can’t figure out the battery because you can’t read the number, pick up the watch battery selector from Amazon , slide your battery through the slot and it’ll tell you which battery to buy. Easy as that.

How thick is a lithium battery?

The number system on the cell (i.e. 2025, correlates to the size, 20 mm across, and 2.5 mm thick).

Can you put a battery in a watch backwards?

Speaking of batteries… I don’t know if you know it, but if you put a battery in backwards in your watch, it’s very possible that the battery will leak, explode and ruin your watch. Be careful. Oh, and do keep batteries away from kids, (especially the lithium ones) they can block the airways and that’s not a good thing.

Is lithium battery more expensive than silver?

The sad thing about lithium batteries is that lithium cells are normally more expensive than silver-oxide or mercury batteries are. And some watches even use 2 of these. Just check out any Casio watch with an LCD screen and stop watch, it drains a lot of cells quickly.

Is it painful to change a watch battery?

Changing your watch battery is a pain.

Can you break a watch if you don’t know what they’re doing?

Make sure you get the proper battery for your watch. If not, have a jeweler do it for you. I always advise that anyway. People have a tendency of breaking their watch if they don’t know what they’re doing (crystals, crowns, gaskets, bands). It’s not worth the trouble.


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