Acer AP19B5L 15.4V 54.6Wh Aspire 5 / Swift 3 / Vero Replacement Battery
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Direct OEM replacement for
AP19B5L/KT00405010/KT.0040.5010/4ICP5/61/71 -
15.4V nominal | 3550mAh | 54.6Wh | 4-cell Li-Polymer pouch construction
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Covers 8 Acer product lines: Aspire 5 (A515-43/52/55), Swift 3 (SF314-42/SF314-512), Spin 3 (SP314-21N), Aspire Vero AV15-51, TravelMate P2, Enduro Urban N3
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Factory direct | tiered bulk pricing | stock available for immediate dispatch
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Each unit pre-shipment tested; Grade-A cells; ≥500 charge cycle rating
Product Description
Most aftermarket pages for the AP19B5L list it under Aspire 5 A515-43 and stop there. That framing misses the actual procurement story: Acer engineered this battery pack — part number AP19B5L, also coded KT00405010, KT.0040.5010, and the internal cell string reference 4ICP5/61/71 — to serve a shared power platform spanning at least eight product lines released across 2019–2022. The same 15.4V / 54.6Wh / 3550mAh unit fits consumer notebooks (Aspire 5 A515-43, A515-43G, A515-52, A515-52G, A515-55), a rugged urban series (Enduro Urban N3 EUN314-51, EUN314-51W, EUN314-51WG), Acer’s eco-focused Vero line (AV15-51), the Swift 3 SF314-42 and SF314-512 thin-and-light series, Spin 3 SP314-21N, and the business-class TravelMate P2 TMP214-41 and TMP215-41. For a repair center or IT procurement team servicing a mixed Acer fleet, that compatibility breadth means a single AP19B5L stock SKU can cover a wide device matrix — a meaningful inventory consolidation advantage over stocking separate part numbers per device.
The “ICP” in the internal code 4ICP5/61/71 designates a Li-Polymer pouch cell construction — four cells arranged in a 2S2P configuration. Pouch cells carry a nominally higher energy density per gram compared to cylindrical equivalents, which is why Acer specified this format for the slim chassis of the Swift 3 (SF314-42 is 14mm thick). The 15.4V nominal reflects the 2S configuration (two series pairs, each pair nominally at 7.7V), charging to approximately 16.8V at full capacity. The BMS board on factory-spec units enforces over-voltage cutoff at 4.2V per cell, under-voltage protection at approximately 2.7V per cell, and over-current protection during both charge and discharge cycles.
For wholesale buyers: this is one of Acer’s higher-volume battery SKUs from the 2020–2022 generation, with a large and active repair market across North America, Western Europe, Southeast Asia, and Australia. Demand is driven by the broad installed base of budget-to-midrange Acer Aspire 5 units from that period, which are now entering their 3–5 year battery replacement cycle in volume. OEM part number verification is straightforward — buyers should confirm the AP19B5L label on the original battery before ordering, as the AP18C4K (11.4V/48Wh) is a different, non-interchangeable unit that fits overlapping Aspire 5 SKUs with a different motherboard power spec.
Technical Parameters
| Parameter | Details |
|---|---|
| Battery Model | AP19B5L |
| Compatible Part Numbers | AP19B5L | KT00405010 | KT.0040.5010 | 4ICP5/61/71 | 4INP5/61/71 |
| Brand Compatibility | Acer |
| Voltage | 15.4V (nominal) |
| Capacity | 3550mAh |
| Energy | 54.6Wh |
| Cell Type | Li-Polymer (pouch cell) |
| Cell Configuration | 4-cell (2S2P) |
| Color | Black |
| Condition | New / Grade-A |
| Cycle Life | ≥ 500 charge cycles |
| Certifications | CE / FCC / RoHS / UN38.3 |
| Warranty | 12 months |
| Package Includes | 1 × AP19B5L battery unit |
| Compatible Laptop Models | Aspire 5: A515-43 / A515-43G / A515-52 / A515-52G / A515-55 Swift 3: SF314-42 / SF314-512 Spin 3: SP314-21N Aspire Vero: AV15-51 TravelMate P2: TMP214-41 / TMP215-41 Enduro Urban N3: EUN314-51 / EUN314-51W / EUN314-51WG Aspire 7: A715-41G (select variants — verify original P/N) |
| Application | Repair Shop Supply / Wholesale / OEM Compatible |
| Supply Type | Factory Direct / Manufacturer |
Need a stable supply plan? Send your model list + quantities + destination. We’ll confirm lead time, shipping method, and compliance documents before you place the order.
Features & Advantages
✅ 🔋 4-Cell Li-Polymer Pouch Pack: Designed for Slim Chassis Tolerance
The AP19B5L uses a 2S2P Li-Polymer pouch configuration — not cylindrical cells. This format delivers higher gravimetric energy density and flat-pack geometry required by the Swift 3 SF314-42’s 14mm chassis. Pouch cells also exhibit lower internal impedance at low temperatures compared to cylindrical Li-ion, which reduces voltage sag during cold-environment deployment relevant to Enduro Urban N3 fleet use cases.
✅ 🖥️ Eight-Line Cross-Series Coverage from a Single SKU
One part number covers Aspire 5 (consumer), Swift 3 (thin-and-light), Spin 3 (convertible), Enduro Urban N3 (rugged), Aspire Vero (eco), and TravelMate P2 (business). Repair centers and IT departments managing mixed Acer fleets from the 2019–2022 generation can stock a single AP19B5L unit to cover the majority of 15-inch and 14-inch AMD-platform Acer devices from that period.
✅ ⚡ 15.4V Platform Separation: Critical Ordering Clarification Competitors Omit
The AP19B5L (15.4V / 54.6Wh) and AP18C4K (11.4V / 48Wh) are not interchangeable, despite covering overlapping Aspire 5 model numbers depending on the motherboard variant. The voltage mismatch will trigger immediate BMS shutdown. Before placing a bulk order, confirm your devices carry the 15.4V battery by checking the label on the original unit. This is the most common mis-procurement error for this series.
✅ 📦 Batch QC Documentation Available for B2B Orders
Factory-direct orders above minimum quantity include per-batch capacity test reports (actual Wh discharge data), cell lot traceability records, and product compliance documentation. Procurement teams requiring documentation for asset management systems or warranty audit trails can request these before shipment confirmation.
✅ 🚚 Stocked for Immediate Dispatch | 12-Month Warranty
AP19B5L is an active production item with standing inventory. Standard lead time for stocked bulk orders: 3–5 business days to dispatch. Each unit carries a 12-month warranty covering capacity-related defects. Replacement units are dispatched without requiring return of the original in cases of confirmed manufacturing defect.
Packing & Delivery
Lead Time & Shipping
In-stock items: Ship within 3 days
For standard replacement models with available inventory.Mass production orders: Ship within 7 days
For regular models under confirmed specifications and packaging requirements.Customized orders: Ship within 15 days
For custom cell configuration, size, wire/connector, PCB/BMS, labeling, or packaging.
Note: Final dispatch time depends on total quantity, model complexity, packaging requirements, and shipping compliance documents. We will confirm the estimated shipping date (ETD) after order confirmation.
Air freight (urgent, smaller volume)
Sea freight (cost-effective for bulk)
Rail / Truck (subject to destination)
Express channels
Documents available: UN38.3 / MSDS / Transport Test Report (if applicable)
Compliant packaging and carton labeling can be arranged based on the chosen shipping method.
EXW / FOB / CIF / DDP available
FAQ
Q1: The AP19B5L and AP18C4K both appear compatible with some Aspire 5 A515-43 models. Are they interchangeable?
A1: No. The AP19B5L operates at 15.4V / 54.6Wh while the AP18C4K is rated at 11.4V / 48Wh. These are entirely different power platforms. Acer produced both voltage variants of the Aspire 5 A515-43 with different motherboard specs. Installing the wrong voltage unit will trigger the BMS protection circuit and the battery will not charge. Before placing any bulk order, confirm the voltage printed on the original battery label from your device pool. Do not rely on model number alone to determine compatibility.
Q2: What is the minimum order quantity for wholesale pricing on the AP19B5L?
A2: MOQ tiers apply to unlocking wholesale pricing. Please contact us directly for current tier pricing — we can accommodate sample orders (typically 5–10 units) prior to bulk commitment, which we recommend for procurement teams that want to verify fitment across their device fleet before placing a full order. Lead time for stocked items is 3–5 business days from order confirmation.
Q3: Some sources list this battery as Li-ion and others as Li-Polymer. Which is correct, and does it matter for procurement?
A3: The correct designation is Li-Polymer (pouch cell construction). The internal Acer code 4ICP5/61/71 uses “P” to indicate polymer cell format. Many third-party sellers apply the generic “Li-ion” label without distinguishing chemistry, which creates confusion. For procurement purposes, it matters primarily for shipping: Li-Polymer pouch packs require the same UN38.3-certified packaging as Li-ion for air freight, but their flat-pack form means slightly different physical handling requirements for high-volume pallet shipments.
Q4: Can we request batch test reports or capacity verification data for bulk orders?
A4: Yes. Factory-direct bulk orders above the minimum threshold are eligible for per-batch discharge capacity reports showing actual Wh output against rated spec. Cell lot numbers and traceability data are also available on request. These documents are provided before shipment confirmation and are useful for procurement teams maintaining battery asset records or operating under IT equipment management policies that require incoming quality verification.
Q5: Does the AP19B5L fit the Aspire Vero AV15-51 series? We have a school fleet of these units.
A5: Yes, the AP19B5L is a confirmed direct-fit replacement for the Aspire Vero AV15-51 series, including sub-models AV15-51-518U, AV15-51-549K, AV15-51-7555, and others in the AV15-51 production run. The Vero line uses the same 15.4V power platform as the Aspire 5 A515-55 from the same generation. For school fleet procurement, we can provide a compatibility confirmation checklist and issue a quotation formatted for institutional purchase order processing.
Q6: What warranty terms apply to bulk orders, and how is a defective unit handled?
A6: All AP19B5L units carry a 12-month warranty covering manufacturing defects, including cell capacity failure below 80% of rated output within the warranty period. For confirmed defective units in a bulk order, we dispatch a replacement without requiring the original to be returned first — subject to photo evidence of the defect and order verification. Warranty terms for OEM or private-label packaging orders are discussed at the quotation stage and documented in the supply agreement.
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