The BLP673 battery model name belongs to Oppo, and most listings match it to four phones: the Oppo A3s, Oppo A5, Oppo A5s and Oppo AX7. The pack is listed at 3.82 V and about 4230 mAh typical. Only the code printed on your own battery can settle it, because one phone name can hide more than one battery version.
Some buyers write the code with a gap, as "blp 673". That is the same code. The letters BLP are shared by Oppo, Realme and OnePlus packs, so they tell you the maker group and nothing more. The digits 673 point to this pack, and a worn sticker can make them hard to read.
Quick facts
Step by step
Write down the phone name from the box
Look at the box or the bill for the exact name, such as A5s or A3s. If the box is gone, open Settings, then About phone, and note the name and model number shown there.
Let the technician read the old sticker
After the back is opened, the code
BLP673should be printed on the sticker with the voltage and capacity. Ask for a photo of the sticker so you keep the exact text.Compare the new pack with the old one
Put both packs side by side. The code, the outline, the position of the connector and the thin cable strip should all look the same.
Check weight, print and batch details
A genuine-looking pack has sharp, even print and batch marks. A pack that is clearly lighter than the old one, or that claims far more than the old capacity, should be refused.
Phones that use the BLP673 battery model name
Most listings agree on the Oppo A3s, the Oppo A5, the Oppo A5s and the Oppo AX7. These phones belong to the same generation of Oppo A-series models, so one pack suiting all of them is believable. The match comes from spare part listings, so treat the table as a strong lead and not as a maker guarantee.
| Phone | Status | What to check |
|---|---|---|
| Oppo A5s | Matched by listings | Read the sticker before ordering |
| Oppo A3s | Matched by listings | Read the sticker before ordering |
| Oppo A5 | Matched by listings | Older phone; not the newer A5 of the later batch |
| Oppo AX7 | Matched by listings | Naming differs by market, so confirm |
The full list of Oppo, Realme and OnePlus codes is on the Oppo battery model list. If you hold an A5s and want a page built around the phone name, see the Oppo A5s battery page.
Rated and typical capacity of BLP673
The figure of about 4230 mAh is the typical capacity, the value quoted in adverts and spare listings. Oppo packs usually print a slightly smaller rated (minimum) figure on the sticker too. Listings disagree on that rated value for BLP673, so take it from your own battery instead of copying a figure from the internet.
Watt-hours let you compare this battery fairly with other packs. To find them, multiply the voltage by the mAh figure, and then shift the decimal three places by dividing by 1000. Take 4230 mAh at 3.82 V: the result is roughly 16.2 Wh. Another pack can carry the same mAh but work at a different voltage. Since the stored energy differs, weigh the volt rating alongside mAh when comparing a BLP673 with another pack.
Screen-on time depends on much more than the pack. The chip, screen brightness, mobile signal and heavy apps all matter. A phone of this class usually lasts a working day for light users, but your own result will differ, and it drops as the cell ages.
Proving the code before you order
Never order from the phone name alone. A phone can be sold in several versions, and a listing can be wrong. The reliable proof is the printed sticker of the pack you are replacing. Since these phones are sealed, that means a technician opens the back.
Photograph the old sticker so the code, voltage and batch lines are all in the frame. If the first pack does not fit, you can show the picture instead of explaining from memory.
If the old battery is too swollen or worn to read, ask the repair person to check the phone's full model number and then match the pack by that. Follow the four steps listed near the top of this page in that order. For the general method, see the hub on finding a battery model name.
Look-alike codes and phones that get mixed up with BLP673
Two kinds of mix-up happen at the counter. The first is a misread digit, such as 673 read as 637 or 678. The second is a phone with a near-identical name. The older Oppo A5 and the later Oppo A5 2020 page describe different phones, so do not assume they share a pack. The later one has its own battery page.
- BLP685 is another Oppo family code with a separate phone list. It is no substitute.
- BLP729 and BLP731 are close in number but are separate codes.
- The Oppo A31 and Oppo A53 each have their own battery page, so do not borrow a code from them.
A customer brought the later Oppo A5 and asked for the pack of the A5s because both names looked alike. The technician opened the back and read the sticker. The code was different, so the A5s pack would not have been the right one. The sticker was the only safe test.
Signs that a BLP673 pack is ageing
| Symptom | Usual cause | Action |
|---|---|---|
| Charge falls quickly through the afternoon | Cell holds far less than when new | Check its health first, then consider a new pack |
| Phone dies suddenly near 30 percent | Worn cell cannot supply peak current | Test the pack at a service counter |
| Screen lifts or back panel bulges | Gas build-up inside a swollen cell | Stop charging and get help the same day |
| Back panel too hot when unused | Background app, poor signal or a bad pack | Restart it, remove the cover, then get a technician to look |
Apps and signal cause many cases of quick drain, so read why the charge falls so quickly first. To judge the cell itself, follow how to check battery health. Phones of this generation are several years old by now, so a worn pack is a common reason for trouble.
A bulging, overheated or oozing battery is a fire hazard. Unplug the charger at once, never squeeze or prod the phone, leave it on a bare table far from heat and carry it to an Oppo service counter. Cheap copies with inflated mAh labels circulate widely, so buy only a pack showing the exact code.
Putting in the new battery safely
These phones are not built for easy home swaps, so leave the opening to a trained person. Do not pry the back or pull the pack by its cable strip. Choose an Oppo service counter or a reliable local technician, and tell them the phone name along with the code BLP673.
Spot a weak copy by looking at it carefully:
- It feels clearly lighter in the hand than the pack you removed.
- The print is smudged, with no batch lines.
- Its label boasts well beyond about 4230 mAh, which this size of pack cannot honestly hold.
After fitting, charge the phone once fully and watch whether it stays cool. More on the whole job is in the battery replacement guide.
Looking after an older A-series pack
On a phone that has seen several years of use, small habits count more than a new setting. Avoid charging while the phone is under a pillow or in sun. Remove a heavy cover if the phone gets warm. Keep the charger and cable in good shape, and bin any cable whose connector runs hot.
Try not to leave the phone at full charge for many hours every night, since heat and a constant 100 percent both age the cell faster. If the phone still shuts down after rebooting and one complete charge cycle, the cell is the likely cause. Let a technician test it before you pay for a new pack.
Frequently asked questions
Which phone has the BLP673 battery model name?
Most listings match BLP673 to the Oppo A3s, Oppo A5, Oppo A5s and Oppo AX7. Check the printed sticker of your own battery to be sure.
Is BLP673 the Oppo A5s battery?
Listings give it as the A5s pack. To be certain, have the back opened and read the printed code on the sticker.
How many mAh is a BLP673 battery?
It is listed at about 4230 mAh typical and 3.82 V. The rated figure on your label can be slightly smaller.
Is BLP 673 with a space the same as BLP673?
Yes. People add a gap while typing, nothing more. On the label the code is written as BLP673, with no gap.
Will the BLP673 pack fit the later Oppo A5?
Do not assume it will. The later A5 has its own battery page, so match the code on the old sticker.
How can I tell if a BLP673 battery is fake?
Fakes tend to feel light, show blurred print and carry no batch lines. Their labels also boast far above 4230 mAh. Place the new pack beside the old one and compare.