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Oppo, Realme and OnePlus batteries

Oppo A55 battery model name and capacity

The Oppo A55 (CPH2325) has a 5000 mAh battery, 4890 mAh rated, with 18 W charging. Some listings group it with BLP805, which is unconfirmed.

Codes matched from service listings and teardowns · Updated 2 Nov 2026

Oppo

ModelBLP805 (some listings, unconfirmed)

Capacity
5000 mAh typical
Cell
Li-ion polymer

Fits

  • Oppo A55 (CPH2325)
Match the code on your old battery before you buy.

This site is not affiliated with Oppo; this is an independent explanation.

The Oppo A55 battery model name is not printed in any Oppo document we could find, but the capacity is: Oppo lists the A55 (CPH2325) with a 5000 mAh typical, 4890 mAh rated battery and 18 W charging. Several spare part sellers group the A55 with BLP805, the pack of the Oppo A53, yet none of them shows an A55 cell label.

That makes BLP805 a reasonable lead and nothing more. This page explains how to settle the code for your own A55 before you buy a replacement.

Quick facts

Capacity5000 mAh typical, 4890 mAh rated
Energy19.35 Wh typical, 18.92 Wh rated (Oppo)
Charging18 W
Model numberCPH2325
Code leadBLP805, not confirmed for the A55

What Oppo publishes about the A55 battery

Oppo's own A55 battery figures
ItemValue
Typical capacity5000 mAh, 19.35 Wh
Rated capacity4890 mAh, 18.92 Wh
Nominal voltage3.87 V
Charging18 W

Oppo is unusually clear about both figures here, which makes it easy to spot a replacement that overstates its capacity.

Oppo A55 battery model name: the BLP805 lead

Our BLP805 page covers the pack sold for the Oppo A53 and A32. Some sellers also list the A16, A54 and A55 next to it. The A55 shares the 5000 mAh capacity and a similar body, so the match is plausible, but plausible is not proof. Ask a technician to photograph your own cell; if it says BLP805, you are set.

Do not confuse the A55 with the A55s or A54

Oppo sold several phones with similar names in the same years: the A54, A55, and in some markets an A55s and A55 5G. They differ in chips and sometimes in batteries. The CPH number under About phone is what identifies yours; the Indian A55 is CPH2325. Our Oppo A54 battery page covers its neighbour.

An A55 whose back cover has lifted or whose screen bulges is carrying a swollen cell. Stop charging, set it on a hard surface and take it to an Oppo service point; never try to press the cover back into place.

Battery life and charging on the A55

With a power saving octa core chip and an HD+ screen, the A55 comfortably runs a full day, often longer with light use. At 18 W a full charge takes around two hours from low. A replacement that suddenly charges in under an hour on the same adapter is probably smaller than 5000 mAh.

Ordering a replacement safely

  • Quote CPH2325 with the code from your old cell.
  • Check that the new label shows about 4890 mAh rated or 5000 mAh typical, not 6000.
  • Prefer an Oppo service centre, which orders by model number and removes the guesswork.

For neighbouring packs, browse the BLP family roundup.

Signs the A55 battery is worn

Typical signs are a phone that no longer reaches bedtime, sudden drops from 30 percent to zero, or slow charging with the original adapter. Check app usage in the battery menu first; if no app stands out, the cell is the likely cause. Our battery health check explains a simple test.

Oppo A55 battery model name on service paperwork

If your A55 has been repaired before, the job sheet may record the battery part. Oppo service centres usually write a part code rather than the BLP number, so the slip may not help directly, but it does show whether the battery was already replaced once. A phone on its second battery is more likely to have a non-original pack, which is worth knowing before you order a third. Ask the service desk to look up the part by CPH2325; they can see the correct code in their system even when it is not printed anywhere public.

Frequently asked questions

What is the battery model of Oppo A55?

Oppo does not publish it. Oppo keeps the code to itself. BLP805 turns up in some seller listings without proof, so check the print on your A55's cell.

What is the Oppo A55 battery capacity?

5000 mAh typical and 4890 mAh rated, according to Oppo.

How fast does the Oppo A55 charge?

It supports 18 W charging, about two hours from low.

What is the Oppo A55 model number?

CPH2325 for the Indian model, shown under About phone.