If you are searching for the BLP729 Battery Model Name, you are probably trying to identify the correct replacement battery for an older Oppo or Realme smartphone. The BLP729 battery appears across multiple Realme models, which is why searching by battery code can be more useful than searching only by phone name.
Current replacement-battery listings commonly identify BLP729 with Realme 5, Realme 5i, Realme 5s, Realme C3, Realme C11 and several other C-series models. Most listings describe it as a 5000mAh lithium-based battery, with voltage specifications around 3.85V to 3.87V depending on the replacement manufacturer.
However, there is an important point before ordering: BLP729 should not be treated as a universal battery for every Realme phone. The exact phone model, battery connector, dimensions, contact arrangement and electrical specifications still need to match.

This post explains the BLP729 model name, commonly compatible Realme phones, connector considerations, universal-combo and current replacement prices. Okay let’s get started.
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BLP729 Battery Compatibility Realme Phones
| Realme Mobile Model | Common Model Number | BLP729 Status | Typical Battery |
|---|---|---|---|
| Realme 5 | RMX1911 / RMX1919 / RMX1927 | Commonly listed | 5000mAh |
| Realme 5i | RMX2030 / RMX2032 | Commonly listed | 5000mAh |
| Realme 5s | RMX1925 | Commonly listed | 5000mAh |
| Realme C3 | RMX2027 / related variants | Commonly listed | 5000mAh |
| Realme C3i | RMX2027 / RMX2020 | Commonly listed | 5000mAh |
| Realme C11 | RMX2185 | Commonly listed | 5000mAh |
| Realme C20 | RMX3061 / RMX3063 | Listed by some suppliers | 5000mAh |
| Realme C21 | RMX3201 | Listed by some suppliers | 5000mAh |
| Realme C21Y | RMX3261 / RMX3263 | Listed by some suppliers | 5000mAh |
| Realme C11 2021 | RMX3231 | Listed by some suppliers | 5000mAh |
Compatibility lists vary between replacement-battery manufacturers, so use this table as a quick reference rather than a guaranteed installation list. Multiple current listings identify BLP729 for the Realme 5/5i/5s/C3/C11 family, while specialist parts suppliers also list C20, C21, C21Y and C11 2021.
What Is the BLP729 Battery Model Name?
BLP729 is a battery part/model code used in replacement-battery listings associated with Oppo and Realme devices. The battery is generally listed with a 5000mAh capacity. Replacement listings commonly show a nominal voltage around 3.85V or 3.87V, with one specialist battery supplier specifying 5000mAh, 3.87V and 19.35Wh.
The important distinction is that BLP729 is the battery model number, not a smartphone model name.
For example:
- Realme 5 is a phone model.
- RMX1911 is a device model number used for a Realme 5 variant.
- BLP729 is the battery identification used in compatible replacement listings.
This distinction becomes important when buying replacement parts because the same battery code can appear against multiple phone models.
BLP729 Battery Specifications
The specifications published by replacement-battery suppliers are broadly consistent around the following values:
| Specification | BLP729 |
| Battery model | BLP729 / BLP-729 |
| Typical capacity | 5000mAh |
| Voltage commonly listed | 3.85V–3.87V |
| Energy | Approximately 19.35Wh at 3.87V |
| Battery type | Lithium-ion / lithium-polymer, depending on listing |
| Application | Smartphone replacement |
| Connector | Must be verified against the original battery |
| Physical fit | Must match the specific phone |
There is some variation in terminology between sellers. For example, one Flipkart listing describes BLP-729 as a 5000mAh lithium-polymer battery at 3.85V, while another specialist listing specifies 5000mAh, 3.87V and 19.35Wh Li-Ion. That is why it is better to verify the markings on the original battery rather than relying solely on a marketplace title.
Which Realme Phones Use the BLP729 Battery?
The most consistently reported BLP729 models are from the older Realme 5 and C-series generation.
Realme 5
The Realme 5 is one of the major phones associated with BLP729. Specialist battery listings identify Realme 5 variants including RMX1911, RMX1919 and RMX1927 as compatible. The phone originally featured a 5000mAh battery, making the BLP729 replacement capacity consistent with the device’s battery specification.
Realme 5i
The Realme 5i is another frequently listed BLP729-compatible phone. Realme’s official specifications identify the 5i with a 5000mAh typical battery and 10W charging. Replacement listings commonly associate BLP729 with RMX2030 and other 5i variants.
Realme 5s
The Realme 5s also appears in BLP729 compatibility listings. The commonly referenced model number is RMX1925. Replacement battery suppliers group the 5s with Realme 5, 5i and C3-compatible BLP729 batteries.
Realme C3
The Realme C3 is another important BLP729 model. Realme’s official C3 information specifies a 5000mAh battery, while replacement listings identify BLP729 as the battery model for C3 variants. One current replacement listing identifies RMX2027 and related C3/C3i variants with BLP729.
Realme C11
BLP729 is also commonly listed for the Realme C11, particularly the original C11 generation associated with RMX2185. Realme’s official C11 information specifies a 5000mAh battery, and specialist replacement listings associate BLP729 with RMX2185.
Be careful with the name Realme C11 2021, however. It is a different device generation. Some replacement suppliers list BLP729 for the 2021 model as well, but the exact device and connector should be verified before purchase.
Other Phones Listed With BLP729
Some specialist battery suppliers have expanded their compatibility lists beyond the most commonly advertised Realme 5/5i/C3/C11 combination.
These include:
- Realme C20
- Realme C21
- Realme C21Y
- Realme C11 2021
- Realme C3i
For example, one specialist parts listing identifies C20, C21, C21Y and C11 2021 variants alongside Realme 5, 5i, 5s and C3. Because these extended compatibility lists are not identical across all sellers, do not assume that a BLP729 battery purchased for one phone will automatically fit another.
What Does BLP729 Battery Model Name Combo Mean?
You may see sellers use phrases such as BLP729 battery combo, BLP729 universal combo or BLP729 compatible battery. In the mobile spare-parts market, “combo” or “universal” generally refers to a battery being marketed for multiple compatible phone models.
It does not mean that BLP729 is a universal battery for every Oppo or Realme smartphone.
For example, one BLP729 replacement may be advertised for:
Realme 5 + Realme 5i + Realme 5s + Realme C3 + Realme C11
This is a compatibility group based on the battery design used by those devices.
The correct interpretation is:
BLP729 universal combo = one battery model marketed for multiple compatible devices.
Always verify the actual phone before installation.
BLP729 Battery Connector: What Should You Check?
The BLP729 battery connector is one of the most important things to verify before replacing a battery. Two batteries can have the same model number but still require careful checking of the connector and physical arrangement, especially when comparing original and aftermarket replacement parts.
Before purchasing, compare:
- Connector shape
- Number of contacts
- Contact arrangement
- Connector position
- Cable length
- Battery dimensions
- Original battery markings
Do not force a connector into the phone if it does not match. A smartphone battery is not a component that should be modified casually. Cutting, bending, soldering or altering a battery connector without proper repair knowledge can create electrical and safety risks.
How to Identify the Correct BLP729 Battery?
If you are replacing a battery, follow this simple verification process.
1. Check the Original Battery: If the battery is accessible and safe to inspect, look for the printed model number.
You are looking for:
BLP729
Do not rely only on the phone model.
2. Check the Phone’s RMX Number
Realme uses model numbers such as:
- RMX1911
- RMX2030
- RMX1925
- RMX2027
- RMX2185
The RMX number can help distinguish different variants of phones with similar commercial names.
3. Check Capacity: BLP729 replacement listings generally specify 5000mAh.
4. Check Voltage: Listings commonly specify approximately 3.85V to 3.87V.
5. Compare the Connector: Check that the connector and contact arrangement match your existing battery.
6. Check Physical Dimensions: The replacement must fit correctly inside the phone.
Never compress, bend, puncture or force a lithium battery into position.
BLP729 Battery Price in India
The price of a BLP729 replacement battery depends heavily on the manufacturer, seller, warranty and whether it is marketed as original, OEM, premium or compatible. Current marketplace listings show a fairly wide range.
For example, a current Flipkart listing for a WELLSYS BLP729 5000mAh battery shows a selling price around ₹753–₹849, depending on the listing/offer. Another Mspare BLP729 listing is around ₹1,148.
Current tracked Amazon listings for BLP729 batteries associated with Realme 5i/5s/C3/C11 are around ₹1,099–₹1,399, depending on the particular product and warranty.
So, as a practical buying range, you may find BLP729 replacement batteries in India for roughly ₹750 to ₹1,400+. Prices can change with seller, warranty, stock and location, so treat these figures as a current market indication rather than a fixed BLP729 price.
What About the BLP729 Connector Price?
There is no single reliable “BLP729 connector price” because most listings sell the complete battery assembly with its connector, rather than pricing the connector as a standardized standalone part.
If you specifically need a connector replacement, identify the exact phone model and connector first. A mobile repair shop may also need to match the connector to the phone’s motherboard rather than simply matching the BLP729 battery code.
Original vs Compatible BLP729 Battery
When shopping for a replacement, you may see descriptions such as:
- Original
- OEM
- Compatible
- Premium
- Replacement
- High capacity
- Universal
These labels should not automatically be treated as equivalent. A marketplace listing may describe a battery as “original,” while another seller offers a compatible aftermarket version. The price difference can be substantial.
Before buying, check:
- Warranty: Does the seller provide replacement coverage?
- Capacity: Is it actually specified as 5000mAh?
- Voltage: Does the specification match the expected battery?
- Model: Is BLP729 clearly printed or identified?
- Compatibility: Is your exact phone model listed?
- Seller: Does the seller have a reasonable return/replacement policy?
The cheapest battery is not necessarily the best choice if the seller provides poor warranty support.
Common BLP729 Battery Buying Mistakes
- Buying Only by Phone Name: Searching for “Realme 5 battery” can produce multiple battery options. Search using both the phone model and battery code.
- Assuming Universal Means Every Realme Phone: It does not. BLP729 is associated with a specific group of models.
- Ignoring the RMX Number: The same commercial phone family can have different regional or variant model numbers.
- Choosing Only by 5000mAh: Capacity alone does not establish compatibility. Connector, dimensions and electrical specifications also matter.
- Buying Without Checking the Connector: A battery that looks similar may still have a different connector arrangement.
- Trusting “Original” Without Checking Warranty: Look at the seller’s warranty and return terms rather than relying only on the word “original.”
Is BLP729 the Same as BLP-729?
In battery listings, BLP729 and BLP-729 are commonly used as variations of the same battery model code. For example, a current Flipkart listing uses BLP-729 as the model number, while other suppliers identify the same battery family as BLP729.
When searching online, it is therefore useful to try both:
- BLP729
- BLP-729
This can help you find more replacement options.
Frequently Asking Questions
1. What is the BLP729 battery model name?
- BLP729 is a battery model/part number commonly associated with several Oppo and Realme smartphone replacement batteries. Current listings generally specify a capacity of around 5000mAh.
2. Which Realme phones are compatible with BLP729?
- Commonly listed models include Realme 5, Realme 5i, Realme 5s, Realme C3 and Realme C11. Some specialist suppliers additionally list C20, C21, C21Y, C3i and C11 2021.
- 3. What is the BLP729 battery capacity?
- Most current BLP729 replacement listings specify 5000mAh.
4. What voltage is the BLP729 battery?
- Replacement listings commonly specify approximately 3.85V to 3.87V. The exact specification can vary by replacement manufacturer, so check the battery label before installation.
5. What is the current BLP729 battery price?
- Current Indian listings vary considerably. Examples found in September 2026 range from roughly ₹753 to ₹1,400+, depending on manufacturer, seller, warranty and product type.
6. Is BLP729 a universal battery?
- No. It is better described as a battery model that is marketed for a group of compatible Realme/Oppo devices. Always verify the exact model and connector before installation.
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Final Words
The BLP729 battery model name is associated with several Realme smartphones and is commonly available as a 5000mAh replacement battery. Because sellers may group several devices under a BLP729 universal combo listing, it can be a convenient replacement option for compatible Realme models.
The most important step is to verify your exact phone model and battery connector before ordering. Do not rely on the BLP729 code alone, especially when different replacement batteries can come from different manufacturers. For the best result, compare the original battery, RMX model number, connector, voltage, capacity and seller’s compatibility information before purchasing.
I am karthikeyan selvaraj founder of foxtechzone.com. I have 8+ years of experience in blogging, SEO, Content writing and wordpress. Follow this blog for more latest tech guides and updates.