Acer AP18C8K Replacement Battery 11.25V 50.29Wh — OEM Compatible Bulk Supply for Swift 3, Aspire 5, Chromebook & TravelMate Series
-
✅ Direct OEM replacement for AP18C8K / AC18C8K / 3INP5/82/70 / 3ICP5/81/68 / KT.0030G.020 / KT.00304.012 / KT.0030G.022 — all cross-referenced and verified
-
✅ Specs: 11.25V / 50.29Wh / 4471mAh, 3-Cell Li-Polymer internal battery, drop-in fit with zero modification
-
✅ Fits Swift 3 (SF314-42/57/57G/58/59), Aspire 5 (A514-52/54, A515-56), Aspire 7 (A715-42G), Chromebook 314/315 (C933, CB315-3H), TravelMate P2 (TMP215-52/53), TravelMate B1 (B118-M), Spin 3 (SP314-54N), and more
-
✅ Grade A Li-Polymer cells; thin-pack design (approx. 5.5mm) engineered for slim chassis — no swelling risk under normal operating temperatures
-
✅ Factory-direct from China, small batch orders supported, standard lead time 3–5 business days — suitable for Chromebook repair specialists, IT fleet managers, and parts distributors
Product Description
The AP18C8K sits at an unusual intersection in the Acer battery catalog: a single 3-cell Li-Polymer pack that serves four distinct buyer segments at once. Retail repair shops buy it for Swift 3 and Aspire 5 jobs. Chromebook service centers stock it for 314 and 315 fleet replacements. Corporate IT teams order it for TravelMate P2 refreshes. Education procurement officers source it in bulk for Chromebook classroom fleets reaching their first replacement cycle. That four-way demand overlap is what makes this a consistently high-turnover SKU — not seasonal, not tied to one product line’s popularity.
One clarification worth making upfront: AP18C8K and AC18C8K appear interchangeably across supplier listings and Acer’s own documentation. They refer to the same physical battery. The AC18C8K designation appears predominantly on Chromebook variants; AP18C8K appears on Aspire and Swift variants. The hardware is identical.
Compatible Models — Verified OEM P/N Cross-Reference
Original Part Numbers: AP18C8K · AC18C8K · 3INP5/82/70 · 3ICP5/81/68 · KT.0030G.020 · KT.0030G.022 · KT.00304.012 · KT00304012
| Series | Compatible Models |
|---|---|
| Acer Swift 3 | SF314-42, SF314-57, SF314-57G, SF314-58, SF314-58G, SF314-59, SP314-54N |
| Acer Aspire 5 | A514-52, A514-52K, A514-54, A514-54G, A515-43, A515-43G, A515-44, A515-44G, A515-54, A515-54G, A515-56, A515-56G, A515-56T |
| Acer Aspire 7 | A715-42G |
| Acer Chromebook 314 | C933, C933T, CB314-1H, CB314-1HT, CB314-3H, CB314-3HT, CB314-4H |
| Acer Chromebook 315 | CB315-3H, CB315-3HT, CB315-4H, CB315-4HT, CB315-5H |
| Acer Chromebook 311 | C722, C722T, C723, C723T |
| Acer Chromebook 511/512 | C736, C741L, C741LT, C852 |
| Acer Chromebook Spin 511 | CP511-2HT, R753T, R753TN, R756T, R756TN |
| Acer Chromebook Spin 512 | R853TA, R853TNA, R856T, R856TN |
| Acer TravelMate P2 | TMP215-52, TMP215-52G, TMP215-53, TMP215-53G, TMP214-55 |
| Acer TravelMate B1 | TMB118-M (all sub-variants) |
| Acer TravelMate Spin B3 | TMB311RNA-31 |
| Acer Spin 3 | SP314-54N |
| Acer Extensa 15 | EX215-22 |
| Acer Enduro Urban N3 | EUN314A-51W |
Always confirm by checking the P/N label on the original battery before placing a bulk order. Some Aspire 5 A515-43/44 sub-variants may have shipped with AP18C4K instead — verify the exact label on the installed battery, not just the laptop model number.
Technical Parameters
| Parameter | Specification |
|---|---|
| Battery Model | AP18C8K (also listed as AC18C8K on Chromebook variants) |
| Voltage | 11.25V (nominal; some listings reference 11.4V or 11.52V — all within OEM spec range) |
| Capacity | 50.29Wh / 4471mAh |
| Cell Configuration | 3-Cell |
| Cell Type | Li-Polymer (pouch cell, not cylindrical) |
| Cell Code | 3INP5/82/70 / 3ICP5/81/68 |
| OEM Part Numbers | AP18C8K, AC18C8K, 3INP5/82/70, 3ICP5/81/68, KT.0030G.020, KT.0030G.022, KT.00304.012, KT00304012 |
| Battery Type | Internal (built-in, requires back panel removal) |
| Dimensions (approx.) | 261 × 82–88 mm × 5.5 mm |
| Weight (approx.) | ~202g |
| Color | Black |
| Condition | Brand New, Grade A Cells |
| Cycle Life | ≥ 500 charge/discharge cycles |
| Storage Temperature | 15°C – 25°C recommended; store at 40–50% SOC |
| Certifications | CE, RoHS, UN38.3 |
| Warranty | 12 months |
| Carton Qty | 20 pcs / CTN (custom packing available) |
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
🎓 The Education Chromebook Replacement Cycle — A Recurring Revenue Driver
Acer Chromebook 314 and 315 units were deployed at scale in K-12 classrooms across the US, UK, Australia, and parts of Europe from 2019 onward. By 2024–2025, these devices are hitting their first systematic battery replacement window — school IT procurement departments are sourcing AP18C8K in bulk quantities, often through IT distributors who supply multiple districts. This is not a one-off transaction pattern; districts that replace one cohort’s batteries typically follow with subsequent cohorts 6–12 months later. Distributors who stock AP18C8K consistently position themselves as the preferred supplier for this predictable repeat demand.
🔋 3-Cell Li-Polymer — Why Cell Chemistry Matters for Slim Chassis
The AP18C8K uses Li-Polymer cell chemistry rather than cylindrical Li-ion 18650 cells. This distinction matters for repair shops: Li-Polymer pouch cells are thinner (approx. 5.5mm pack height), which is why they fit the slimmer profiles of the Swift 3 and TravelMate B1. They also carry a lower risk of electrolyte leakage compared to cylindrical cells if physically damaged. For distributors managing returns and warranty claims, this means fewer messy failure modes from the installed base.
💼 Four B2B Buyer Segments, One Reorder Line
For a distributor building an Acer-focused battery catalog, AP18C8K is one of the few SKUs that earns its shelf space across consumer repair, education, and corporate channels simultaneously. Swift 3 and Aspire 5 drive retail repair volume. TravelMate P2 drives corporate IT orders. Chromebook 314/315 drives education procurement. Stocking depth on this part number converts across all three revenue streams without requiring separate purchasing decisions for each product line.
🏭 Factory-Direct Supply with Batch Traceability
As a China-based notebook battery manufacturer, we produce AP18C8K in-house — not sourced from spot markets. Each shipment carries a production date stamp and batch ID. For repair distributors managing customer warranty windows and for education procurement teams requiring documentation for asset records, this traceability is a practical requirement, not a marketing claim. Small batch orders are supported for initial quality verification before committing to larger volume.
📦 Bulk-Ready for Repair Distributors and IT Fleet Managers
Standard export packing: ESD anti-static bag with foam insert, 20 pcs per carton. Custom white-label packaging and private SKU barcoding available. Lead time on in-stock items: 3–5 business days after PO confirmation, with UN38.3 air freight documentation prepared simultaneously. CE and RoHS compliance documents available on request for education and government procurement requirements.
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: What is the difference between AP18C8K and AC18C8K? Are they the same battery?
Yes, they are the same physical battery. Acer uses AP18C8K as the part number on Aspire and Swift variants, and AC18C8K on Chromebook variants. The hardware — connector, cell configuration, dimensions, and BMS firmware — is identical across both designations. Repair shops and distributors can stock a single SKU to fulfill orders for both part numbers without compatibility issues.
Q2: AP18C8K and AP18C4K appear on many of the same compatible model lists. Are they interchangeable?
Not reliably. AP18C4K and AP18C8K share some overlapping compatible models (particularly Aspire 5 A515-43/44 and Spin 3 SP314-54N), but they are different part numbers with different cell codes — AP18C4K uses 3ICP5/81/68 and AP18C8K uses 3INP5/82/70 or 3ICP5/81/68 depending on production batch. Some machines shipped with either variant. The safest practice is to confirm the exact P/N on the installed battery label before ordering, not just the laptop model number.
Q3: The voltage on this battery is listed as 11.25V, 11.4V, or 11.52V depending on the source. Which is correct?
All three designations refer to the same battery. Li-Polymer cells have a nominal voltage of 3.7V per cell, giving a 3-cell pack a nominal of 11.1V. Acer’s own documentation uses 11.25V as the standard rating for AP18C8K. Third-party listings sometimes reference 11.4V (measured at a mid-state-of-charge point) or 11.52V (a slightly higher nominal standard used by some aftermarket producers). All are within the acceptable operating range for this battery family and do not affect compatibility.
Q4: After installation in a Swift 3 or Aspire 5, the battery is not recognized or shows 0% charge. What should I check?
First, verify the battery connector is fully seated — the flat-cable connector on AP18C8K is easy to misalign during installation without it appearing visibly loose. If the connector is secure, disconnect AC power, hold the power button for 15–20 seconds to clear EC memory, then reconnect battery only and power on. Allow it to discharge to around 5–10%, then charge uninterrupted to 100%. If the BIOS still shows unrecognized status, check for BIOS firmware updates — some Aspire 5 BIOS versions from 2020–2021 had EC compatibility issues with aftermarket batteries that were resolved in subsequent updates.
Q5: What is the minimum order quantity and lead time for wholesale supply?
Small batch orders are supported — contact us for tiered pricing by volume. For in-stock items, standard lead time is 3–5 business days after PO confirmation. Sample orders available before bulk commitment. All shipments include UN38.3 air freight documentation. CE and RoHS compliance documents available on request for education and government procurement records.
Q6: How should AP18C8K stock be managed in a warehouse before installation?
Li-Polymer cells maintain stable capacity for 12–18 months when stored at 15–25°C at 40–50% state of charge. We ship all batteries at approximately 40–50% SOC specifically for this reason. For distributors managing education sector bulk stock — where procurement to deployment cycles can span 3–6 months — this storage tolerance is adequate for a single academic year’s procurement cycle without capacity degradation. Use first-in-first-out rotation and target installation within 12 months of receipt.
Related Products
Looking for more laptop battery models for distribution? Browse our wholesale laptop battery category for bulk supply and factory pricing.
