Most listings link the BLP803 battery model name to the Realme 7i. The pack is sold at roughly 5000 mAh typical. Some listings also mention the Oppo A53 and Realme V3, but nobody has confirmed those. Codes that start with BLP are made by the Oppo group. That group also makes Realme and OnePlus phones, so one pack can fit a Realme and an Oppo model.
People also type this as "blp 803 battery model name" or "realme 7i battery model". Both searches lead to the same pack. Phones named 7 or A5 look close on a shelf, but their codes differ, so the old battery's own sticker has the final word. That sticker can be read only when the back is open, which a technician does.
Quick facts
Step by step
Write down the phone name and model number
Open Settings, then About phone, and note the name and model number. If you cannot find it, type model in the Settings search bar.
Have the old label read and photographed
With the back open, look for
BLP803on the sticker, beside the capacity line. Take a clear photo before the pack is removed.Compare size, connector and code of the new pack
Put the new pack next to the old one. The code, the outline and the connector end should all agree.
Judge print quality and weight
A genuine pack has crisp print, batch details and a weight close to the old one. Be wary of a light pack that claims a much bigger mAh.
Phones that use the BLP803 battery model name
The BLP prefix marks the Oppo group and says nothing about the exact phone. For BLP803, most spare part listings name the Realme 7i. A few also name the Oppo A53 and the Realme V3, but listings disagree, so treat those two as unconfirmed.
| Phone | Status | Note |
|---|---|---|
| Realme 7i | Named in most listings | Check the model number, as versions can differ |
| Oppo A53 | Named in some listings | Unconfirmed. Check the label and the exact version |
| Realme V3 | Named in some listings | Unconfirmed. Check the label |
| Realme 7 and Realme 7 Pro | Look similar | Open their own pages for their codes |
The Oppo A53 has its own page, Oppo A53 battery model, so compare it with what your label says. If the label reads something else, trust the label over any list.
Realme 7i battery model: version matters
The search "realme 7i battery model" seems to have one answer, but phones with the same name can come in versions with different packs. Before you order, find the model number in About phone and compare it with the one on the box. Then check it against the code on the old sticker.
The same care applies to the Oppo A53. Oppo used the A53 name for more than one phone, so say clearly which one you own. A technician reading the sticker settles it in seconds.
One owner wanted a 7i battery and was shown a pack coded for the Realme 7. The sizes looked alike, but the old sticker said BLP803. The wrong pack went back and the right one was fitted the same hour.
One more caution: a separate group of listings ties the 7i to BLP771. The split may follow the market version of the phone, but no source here confirms that, so the label on your own cell decides between BLP803 and BLP771.
Rated and typical capacity of BLP803
People usually quote 5000 mAh in ads and in parts listings, as the typical value. Packs from this group often show a second figure as well, a little lower, called the rated (minimum) value. For BLP803 this rated figure is not confirmed. Read it off your own pack.
Watt hours come from a short sum. Take the mAh number, times it by the voltage of the cell, and then cut the result by 1000. The voltage is printed on the sticker too, but it is not confirmed for this code, so read the label before quoting any Wh value. Comparing packs on mAh alone is not fair.
Daily use depends on the chip, the display, signal and brightness. A 5000 mAh pack usually carries a normal user through a day, but a busy day of video and games will shorten it.
Look-alike codes to keep apart
Mistakes in a shop usually come down to a single digit. Packs with nearby numbers can match in size and colour, but they fit different phones.
- BLP805 and BLP807 sit close to 803 in number. Open their pages for their own phone lists.
- BLP841 is another code people misread when the print is faint.
- The digits 3, 5 and 8 blur on worn stickers. Use a bright light or ask for a photo.
For the whole family, the Oppo battery list shows every code and phone in one place. A shared phone can never be worked out from the number alone.
How a tired BLP803 pack shows itself
| Symptom | Probable cause | Next step |
|---|---|---|
| Percentage drops in big jumps | Worn cell and a weak reading | Run a health check, then ask for a load test |
| Phone dies while showing 15 to 25 percent | Cell cannot supply sudden power demand | Plan a swap at a service centre |
| Back panel gaps or screen lifting | Gas build up inside the pack | Unplug, power down, go for repair the same day |
| Phone stays warm when not in use | Damaged pack or a misbehaving app | Restart, take the case off, get it tested |
Apps and a poor signal can also drain the battery fast, so read why batteries drain fast before you spend money. Then follow the battery health check page to see the state of your phone.
A bulging, warm, leaking or damaged pack can catch fire. Unplug the charger, switch the phone off, do not press or poke it and keep it on a bare, cool surface until a service centre looks at it. Copies that claim a bigger mAh than they hold are common, so insist on a replacement showing the matching code.
Getting a replacement fitted without risk
Phones like these have a sealed back, so only a trained person should open them. Book the Realme 7i into a Realme authorised centre or a nearby repairer you already trust. Bring the RMX number and a photo of the old BLP803 sticker. Before fitting any pack, the technician should match BLP803 with the old label.
Inspect the new pack in your hand for these warning signs:
- Its weight is clearly less than the old pack it is meant to replace.
- The printing looks smeared, and there is no batch mark at all.
- The label boasts far more than 5000 mAh for the same size.
For wider advice, see mobile battery replacement. If you do not know where a code is found on any phone, the hub page on finding a battery model name explains the options.
Keep a picture of the old sticker on your phone. When you need a new pack later, you can show the code straight away without opening the phone again.
Everyday habits that protect this pack
Mid-range phones like these often play long videos and games while charging. That mix of heat and a full charge wears a cell fastest. Charge on a hard, open surface, and take off a tight cover when the rear of the phone gets hot.
Use the original charger from the box. A charger with the same rating or a smaller one is also fine. If a cable gets very hot close to the plug, change it. Suppose the phone shuts off at 20 percent, even when you have rebooted it and charged it to 100 percent. Then have the cell tested first, and spend on a new one only after that.
Frequently asked questions
Which phone uses the BLP803 battery model name?
Most listings match BLP803 to the Realme 7i, at about 5000 mAh typical. Some also name the Oppo A53 and Realme V3, but that is not confirmed. Read the label of your old pack to be sure.
Is BLP803 the Realme 7i battery model?
Most listings say yes. Phones with the same name can come in versions, so compare the model number from About phone with the sticker.
How many mAh is the BLP803 battery?
As per the listing, the capacity is around 5000 mAh typical. Your own pack may be rated slightly under that number, so read the actual label to be sure.
Can I use BLP805 in place of BLP803?
No, check before you try it. The two are different codes, and each could fit other handsets. First compare the whole code and the connector shape.
Does the Oppo A53 use the same battery as the Realme 7i?
Some listings name both for BLP803, but others do not. Since the A53 name was used for more than one Oppo phone, check the label of your old pack.
How do I spot a fake BLP803 battery?
Fake packs are often light when you hold them. Their printing looks blurry, they carry no batch mark, and they claim a capacity much higher than 5000 mAh. Place the new one beside the old pack and look at both closely for any difference.