The Oppo A5s battery model is BLP673, listed by parts sellers at 4230 mAh and 3.8 V. BLP marks it as an Oppo group cell. Most listings place the same code in the Oppo A7 as well, so the two phones are usually treated as twins when it comes to the battery.
People search this phone as "a5s battery model name" or even "oppo a5 battery model name", and that second spelling is where mistakes begin. The A5s, the older A5 and the newer A5 are three different phones. Read the full phone name first, then match the code to it, and only then think about buying anything.
Quick facts
Step by step
Write down the full phone name and model number
Open Settings, tap About phone and note the device name and model number. If you cannot find the model number, type model in the Settings search bar.
Ask for the old label to be read at the counter
The technician opens the back and reads the code on the cell label. For this phone it should say
BLP673, along with a capacity and voltage line.Compare the new pack with the old one
Place both packs side by side. The code, the size, the connector and the thickness should look the same.
Inspect print and weight
A genuine-looking pack has sharp print and batch marks. A pack that feels much lighter than the old one, or claims far more than 4230 mAh, should be refused.
The Oppo A5s battery model in one view
Here is what the listings agree on for this phone, and what you still need to read from your own pack.
| A5s detail | Value | Status |
|---|---|---|
| Battery code | BLP673 | Matched by listings |
| Capacity | 4230 mAh | Listed figure; read the rated one on the label |
| Voltage | 3.8 V | Listed figure; check the label |
| Opening | Back panel | Technician job, the body is sealed |
BLP673 has its own page listing every phone attached to it: the BLP673 page. This page stays focused on the A5s, for when that phone is the one in your hand.
Where to see the code on the phone, the box and the pack
The code itself sits on the cell label inside the phone. The A5s hides it until the back is opened, so ask a technician to do that. Please do not pry the panel with a blade at home, because the cell sits close to the board.
- On the pack: look for
BLP673, the capacity line and the voltage line. - On the box: you will find the phone name and its model number, which tell the shop which A5s you own. The A5s box does not usually show BLP673.
- A5s Settings: About phone gives the name and model number. Menu wording shifts with each software update, so use the search box in Settings if the battery page hides.
Take a clear picture of the old pack's label before it leaves your sight. A quick picture of the BLP673 label spares you a return visit should the first part be wrong.
Capacity of the A5s battery: 4230 mAh and what it means
The figure 4230 mAh is the one that listings and adverts use. BLP673 labels often add a rated figure a little under 4230 mAh, so check yours. Treat 4230 as the typical figure unless the label says something else.
BLP673 holds about 16.1 Wh: 4230 mAh times 3.8 V, divided by a thousand. For 4230 mAh at 3.8 V that gives roughly 16.1 Wh. An A7 pack at a different voltage would not hold the same energy even with equal mAh, so compare both figures.
A5s runtime depends on its screen, signal, brightness and the apps left running. An older phone with a pack of this size usually covers a day of ordinary use when the cell is healthy, and a worn cell will not.
Do not confuse the A5s with other A5 phones
Many buyers type only "A5" and get a list of different phones. The A5s is a budget phone from the older range. The older A5 and the newer A5 have their own packs and their own codes. Nothing links the newer one to BLP673, and you can read about it on the Oppo A5 battery page.
A customer asked for an "A5 pack" and the counter gave one for a different A5. It had the same capacity in the advert but a different connector, and it did not click in. The technician found BLP673 on the A5s label and ordered that code. Same mAh was no guide; the code was.
When the print on an old label is faint, tilt it under a strong light. On a worn BLP673 sticker the 6, 7 and 3 are easily misread.
Signs your A5s battery is failing
| A5s symptom | Likely reason | What to do |
|---|---|---|
| A5s drains fast after a full charge | Worn BLP673 | Run the health check guide, then plan a swap |
| A5s cuts out at 20 to 30 percent | Tired BLP673 under load | Have BLP673 tested |
| A5s back lifts or screen gaps | Swollen cell | Stop charging at once |
| A5s warm while idle | Worn BLP673 or a stuck app | Restart the A5s, drop its cover, then test BLP673 |
Before blaming BLP673, check apps and signal on the A5s with our drain checklist.
A BLP673 that swells, heats, leaks or dents can catch fire. Disconnect the A5s, keep it straight and away from warmth. Have Oppo service look at it that day. Low-quality copies often show a false mAh figure, so buy only a pack that reads BLP673 on its label.
Replacing and looking after the pack
Because the A5s is sealed, leave the work to the brand service point or any repair shop with a good name. Quote the A5s or A7 CPH number and have them hold BLP673 against the old sticker. Our swap guide covers fitting in more detail.
- Weigh the new BLP673 against the old one. A big gap is a bad sign.
- Refuse any label that claims much more than 4230 mAh. No A5s sized cell can genuinely store that.
- Look for batch marks and clean, even print.
Day to day, charge the A5s away from pillows and sun, take off a heavy cover when it warms, and stick with its 10 W boxed charger. Letting the phone sit at full charge for hours ages an older cell faster. Other Oppo cells are listed in our BLP code table.
Frequently asked questions
Which battery code does the Oppo A5s use?
Listings give BLP673, with 4230 mAh at 3.8 V. Confirm it from the old pack's label before you buy.
What is the Oppo A5s battery model name for the A5 phone?
There is no single answer for "A5" because the A5s, the older A5 and the newer A5 are different phones. For the A5s the code is BLP673. For the others, check their own pages.
How many mAh is the A5s battery?
It is listed as 4230 mAh. The BLP673 label may carry a lower rated value, visible once the A5s is open.
Can I use the Oppo A7 battery in the A5s?
Most listings give both phones the code BLP673. Still, read the old cell's label and check the plug before fitting.
Should I swap the A5s battery myself?
It is not advised. The A5s back is sealed and BLP673 may be glued, so a technician should open it. A wrong pull can damage the cell.
How do I spot a fake A5s battery?
A fake BLP673 weighs less, prints fuzzily, has no batch details and claims well over 4230 mAh. Set it beside the A5s's old cell.