The BLP737 battery model name, also typed blp 737, is listed for the Oppo Reno2 Z and Reno2 F, with Oppo model numbers CPH1945 and CPH1951. Parts shops print 3900 mAh against 3.85 V, sitting just under the 4000 mAh in Oppo's adverts as a rated figure would.
OnePlus also uses BLP codes, but we found no OnePlus phone carrying BLP737. OnePlus phones from that era used codes such as BLP637 in the OnePlus 5.
Quick facts
Phones using the BLP737 battery model name
| Phone | Oppo model number |
|---|---|
| Oppo Reno2 Z | CPH1945, CPH1951 |
| Oppo Reno2 F | CPH1989 |
The plain Reno2 shares the look but not the internals, so confirm the CPH code shown under About phone.
Pop up camera phones and battery size
The Reno2 Z and Reno2 F used a motorised pop up selfie camera, which took space inside the body. That is part of why their battery stopped at about 4000 mAh while later phones without pop up cameras reached 5000 mAh. A replacement claiming 5000 mAh for these phones cannot be honest.
BLP737 battery model name versus the Reno2 battery
The plain Reno2 had a larger 4000 mAh class pack with another code and faster charging. Because the names are so close, a shop may hand over the Reno2 pack for a Reno2 Z or the other way round. Check both the code and the outline before fitting. The Reno2 Z pack is noticeably narrower at one end to clear the pop up camera mechanism.
Confirming BLP737
Opening a Reno2 Z means removing a glued glass back. Expect the sticker to show BLP737 with its voltages and the 3900 mAh line. Quote both BLP737 and the CPH number when you order.
Reno2 Z phones are now old and a swollen BLP737 can push against the pop up camera mechanism. If the camera struggles to rise or the back lifts, stop charging and take the phone in for the battery to be removed.
Battery life after a replacement
A new BLP737 gives the Reno2 Z about a day of moderate use. Its VOOC 3.0 charging at 20 W fills it in well under two hours. If the new pack lasts much less than that, it is probably a low quality copy.
Other Oppo codes from that period
Oppo's codes in the 700s cover phones from the Reno2 era through the early A series. BLP741 and BLP757 are nearby examples on this site. Our Oppo code list collects the rest, and our battery swap walkthrough lists the checks to run once the Reno2 Z is closed up.
Is the Reno2 Z worth a new battery
The Reno2 Z still has a capable quad camera and a full screen without a notch, which some owners prefer. A fresh BLP737 makes it a reliable daily phone again for calls, chat and photos. The pop up camera motor is the part most likely to fail next, so ask the repairer to test it while the phone is open.
Ordering BLP737 in India
The Reno2 Z and Reno2 F sold well in India, so Oppo service centres and local shops still stock the pack. Service centres order by the CPH number and fit the genuine part. Local shops often keep aftermarket stock; ask to see the label and compare its weight with your old cell before agreeing.
Frequently asked questions
Which phone uses the BLP737 battery?
The Oppo Reno2 Z and Reno2 F.
What is BLP737 battery capacity?
About 3900 mAh rated at 3.85 V, on phones advertised with 4000 mAh.
Is BLP737 a OnePlus battery?
No source ties it to a OnePlus phone. It is an Oppo pack.
Is blp 737 the same as BLP737?
Yes, same pack. Searches often split the letters and digits.
How long does a Reno2 Z battery last after replacement?
A good BLP737 gives roughly a day of moderate use. If the new pack runs out by mid afternoon with the same habits, it is probably a weak copy and worth returning.
Can I see BLP737 from outside the phone?
Not without opening it. The glued glass of the Reno2 Z has to be warmed and lifted before the cell shows.