The Vivo Y16 battery model name is B-W1, a pack of 5000 mAh typical capacity. Most listings give the same B-W1 pack for the Vivo Y02s as well. People also type it as BW1 or B W1, and all three spellings mean one code.
The Y16 is a sealed phone. Its code is written on the sticker fixed to the cell, and you will only see that sticker once a technician takes the rear panel off. The phone box and the Settings screen give the phone model number, not the battery code. Read the old sticker first, then order the pack that carries the same code.
Quick facts
Step by step
Write down the phone model number first
Open Settings and go to About phone. If you cannot find the model line, type model in the Settings search bar. The Y16 number usually starts with V22.
Ask for the old label to be read aloud
Once the back is open, the sticker should read
B-W1along with capacity and batch marks. Take a photo of it before the pack is removed.Compare the new pack with the old one
Put both packs on the counter. The code, the shape and the connector end should look the same, and the weight should feel similar.
Test the phone after fitting
Charge it once fully and watch how the percentage falls over the day. Sudden drops or heat during charging mean the pack should go back.
Vivo Y16 battery model name and its twin phones
Vivo writes its battery codes with a capital B, then a hyphen, then two more characters. For the Y16, the code that listings agree on is B-W1. A few other entry-level Vivo phones are listed with this pack too, so check before you assume a match.
| Phone | Model number | Note |
|---|---|---|
| Vivo Y16 | V2204 | B-W1 in most listings |
| Vivo Y02s | Not confirmed here | Named together with the Y16 in most listings |
| Vivo Y02 | Not confirmed here | Appears in some listings only; read the label |
| Vivo Y35 5G | Not confirmed here | Appears in one listing; verify before you order |
Only the Y16 and the Y02s are given as fits on this page. For the Y02 and Y35 5G, treat the match as something to check against your own sticker. The full code page for this pack is B-W1, and other Vivo phones are gathered in the Vivo battery model list.
Where you can see the code and where you cannot
Many owners search the Y16 battery model number and hope the phone will show it. It will not. The battery code lives only on the pack, and the Y16 is a sealed phone, so the sticker cannot be seen until the back is opened.
- Pack sticker: shows B-W1, the capacity and batch marks. This is the only place to read the code with certainty.
- Phone box: shows the phone model number and colour, not the battery code.
- Settings: the About phone page lists the device name along with its model number. Menu names change a little between software versions, so use the search bar if you cannot spot them.
Request a clear photo of the sticker from the repairer before the swap. If the new pack is wrong, you then have proof of the original code.
Capacity of the Y16 battery: 5000 mAh explained
Ads and parts listings quote 5000 mAh, the usual figure for this phone. The pack normally carries a second, lower number too, which is the minimum rated capacity. We do not know that rated number for the Y16. Check the label on the battery fitted in your own phone.
Watt hours tell you the energy in the pack: multiply mAh by volts, then divide by 1000. The voltage of the B-W1 pack is not confirmed here. As an example, a sticker showing 3.87 V would mean about 19.4 Wh.
Hours of use cannot be promised from the mAh figure. How long the screen stays on depends on the chip, display brightness, mobile signal and the apps working in the background. A Y16 used for calls, messages and some video usually lasts a normal day, but heavy gaming and weak signal areas cut that short.
B-W1 and the look-alike codes at the counter
Vivo codes are short, so mix-ups are common. B-W1 can be misread as another code when the print is faint. Another trap is the way the code is typed. People write BW1, B W1 or B-W1, and a seller may spell it differently from your sticker.
Some listings for the Y16 carry a different code in the title, such as B-S7, while the rest of the page says B-W1. That is a good reason to trust the sticker on your old pack, not a typed title. Each code has its own page: see B-S7 and B-Y1 before you accept any pack marked with those letters.
A Y16 owner brought in a pack marked B-S7 because the online title said so. The technician held it next to the old B-W1 sticker, saw the codes differed and sent it back. The right pack was then fitted.
Phones from other Vivo series have different packs. The Vivo Y20 and Vivo Y21 pages show how their codes differ, even though the phone names look close.
When a Y16 battery is wearing out
| Sign | Probable cause | Next step |
|---|---|---|
| Percentage falls fast soon after charging | Capacity has faded over many charge cycles | Follow the health check, then decide on a new pack |
| Phone shuts down with charge still showing | Tired cell cannot deliver sudden bursts of power | Ask a technician to load-test the pack |
| Display lifts or rear panel bulges | Swollen cell | Stop using the phone and book a visit the same day |
| Body feels hot with no app in use | Busy background app, weak network or a bad pack | Restart the phone, remove the back cover, and get the battery checked. |
Rule out software first. The page on why a battery drains fast lists the usual app and signal causes, and the battery health check helps you decide if the pack itself is the problem.
If the Y16 body is bulging or the pack smells strange, switch it off and do not charge it again. Never press, bend or open it. Cheap copies with inflated mAh labels also fail early, so insist on the exact B-W1 code.
Replacing the Y16 pack without trouble
The Y16 has no removable back, so leave the opening to trained hands. An authorised Vivo centre, or a workshop whose work you already trust, owns the right tools and will disconnect the pack safely. Tell them your phone model number and ask them to match B-W1 to the old sticker.
Inspect the new pack before it is fitted:
- The weight should be near that of the old pack. A very light pack that claims 5000 mAh or more is suspect.
- The print should be sharp and show a batch mark. Smudged text is a warning.
- The connector should match the old one exactly. A pack of equal capacity but another code may not fit.
If you want more help with changing a pack, go through our mobile battery replacement page. Not sure how to make sense of a code on some other phone? Then open finding a battery model name.
Daily habits that keep a 5000 mAh pack healthy
Heat and many hours parked at 100 percent age a cell fastest. Do not charge the Y16 on a sofa cushion, beside a window in the sun or under bedding. If the phone feels warm while plugged in, slip off the cover.
Use a proper charger and a cable in good shape. A cable with a plug end that heats up should be replaced. Charging time depends on the charger rating, so a slow charger on a 5000 mAh pack will take several hours, and that is normal.
If you can, unplug the phone once it is near full rather than leaving it connected all night. Keep some free storage and update apps, because a busy phone with low storage runs hotter and drains faster.
Frequently asked questions
What is the Vivo Y16 battery model name?
Sellers list B-W1 as the battery code for the Vivo Y16. This pack is 5000 mAh typical. To be safe, match it with the label printed on the battery you are removing.
Is the Y16 battery model number the same as the phone model number?
No. V2204 and similar numbers identify the phone; B-W1 identifies the cell. The battery code is B-W1 and is printed only on the pack.
How many mAh is the Vivo Y16 battery?
Vivo markets this pack as a cell with a typical rating of 5000 mAh. The number printed on the label can read slightly less. To be sure, look at the battery inside your own phone.
Can I use the Vivo Y02s battery in the Y16?
Most listings name both phones for B-W1, so the pack is expected to suit both. Still, match the code and connector on your old battery before buying.
Is BW1 the same as B-W1?
Yes. Sellers and buyers often drop the hyphen or type a space. The code on the pack is written B-W1.
Can I change the Y16 battery myself?
That is not wise. The back is sealed and the pack is glued in, so prying can puncture the cell. Hand the job to the maker's service desk or a workshop with a good name.