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OPPO A58 Replacement Battery BLPA19 3.9V 4600mAh

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From $30.99 USD $38.99
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Fits Oppo A58 and CPH2577 models; replaces OEM battery part number BLPA19.
3.9V, 4600mAh Li-Polymer cell restores full-charge capacity on the A58 after degradation.
Connector seats flat against the phone's battery slot with a single plastic locking tab.
We bench-tested the BLPA19 cell on an A58 motherboard; the fuel gauge IC accepted the new BMS handshake without fault codes.
On first use after installation, disable fast charging for one full discharge-charge cycle to let the coulomb counter recalibrate against the new cell curve.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

3.9V

Amp

4600mAh

Oppo A58 / CPH2577 — 3.9V Li-Polymer Replacement Battery (BLPA19)

This is a 3.9V, 4600mAh Li-Polymer cell replacing the OEM BLPA19 battery in the Oppo A58 (CPH2577). It fits directly into the original battery bay with no modification. Capacity is rated at 17.94Wh — matching the stock specification.

  • A58 and CPH2577 compatibility: Both model designations are the same handset sold across different regions. They share identical battery bay dimensions (93.80 × 66.00 × 4.60mm), the same 3.9V nominal voltage rail, and the same BLPA19 connector and BMS handshake — so one cell covers both variants.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on an Oppo A58 unit. The BMS accepted the cell without fault codes, and the charge IC completed a full cycle without thermal shutdown or communication errors.
  • Fuel gauge recalibration on first use: After installation, disable SUPERVOOC or fast charging and run one complete discharge-to-charge cycle at standard speed. This lets the fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current charging begins on an uncalibrated cell.

Why the Oppo A58 reports wrong battery percentage after a cell swap

The A58 uses a coulomb-counting fuel gauge IC that builds its discharge model from the previous cell's behaviour. When a new cell goes in, the IC still references the old degraded curve, so percentage readings can appear inflated or jump unexpectedly. The fix is a single uninterrupted discharge from 100% down to automatic shutdown, followed by a full charge at standard speed — no fast charging during this first cycle. After that cycle the fuel gauge recalibrates its internal model to the new cell and percentage accuracy stabilises.

Sudden shutdown at 20–30% on the replacement cell

This happens when the fuel gauge IC hasn't yet recalibrated — it reports a percentage that doesn't match actual cell voltage, and the phone cuts out the moment voltage drops below the protection threshold under modem or display load. It is not a faulty cell. Run the recalibration cycle above, then check that the phone shuts down closer to 3–3.5V per cell under normal use. If shutdowns continue after two full cycles, confirm the battery connector is fully seated and not lifting at one edge.

Compatible Models

A58 CPH2577

Replaces Part Numbers

BLPA19

Technical Specifications

Voltage3.9V
Amp Hours4600mAh
Capacity4600mAh
Rate17.94Wh
Net Weight73g /2.58 oz
Gross Weight123g /4.34 oz
Approximate Weight123g /4.34 oz
Dimension 93.80 x 66.00 x 4.60mm

Product Highlights

  • Brand: Oppo
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

After fitting the BLPA19, SUPERVOOC fast charging isn't working — the phone just slow-charges. Is this a faulty battery?

This is normal on the first cycle after a cell swap. The USB-PD and SUPERVOOC protocol negotiation depends on a BMS handshake that some replacement cells don't complete until after one standard charge cycle. Run one full charge at slow speed, let the phone discharge naturally to shutdown, then charge again — SUPERVOOC typically re-engages on the second or third cycle once the BMS has completed its initialisation sequence.

The phone won't power on at all after the new battery sat in a drawer for a few weeks before installation. What happened?

Li-Polymer cells self-discharge in storage, and if the cell dropped below roughly 2.5V, the BMS enters a lockout state to prevent damage — it blocks current flow entirely. Plug the phone into a wall charger (not a PC USB port) and leave it for 20–30 minutes without pressing the power button. The charge IC trickle-charges the cell past the BMS recovery threshold; once voltage exceeds approximately 3.0V, the BMS unlocks and the phone should power on normally.

The phone feels warm near the battery compartment during the first few charges after replacement. Should I be concerned?

Mild warmth on the first few charges is expected. A new Li-Polymer cell has slightly higher internal impedance than a broken-in cell, so the charge IC dissipates a little more energy as heat during the constant-current phase. This typically settles after three to five full cycles as the cell's impedance drops. If the phone becomes hot to the touch or charging stops prematurely, remove the rear cover and confirm the battery connector is fully and evenly seated — a half-engaged connector increases contact resistance and heat significantly.

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