01AV489 11.46V 24Wh ThinkPad T470 T480 A475 A485 TP25 Internal Battery | Factory Wholesale Supply

OEM P/N: 01AV489 (SB10K97577); cross-references 01AV419 (SB10K97576), 01AV420, 01AV421 (SB10K97578), 3ICP6/38/64
Specs: 11.46V · 24Wh · ~2095–2100mAh · Li-ion · Black — 24Wh OEM replacement battery (internal/built-in unit; requires back cover removal for installation)
Compatibility: ThinkPad T470, T480, A475, A485, TP25 (Anniversary Edition 25) Series — internal battery position only; not the external removable battery on the same platforms
Stocking note: Fleet stocking profile — single SKU covers the internal battery position across all five ThinkPad T470/T480-generation device lines; stocked for immediate mixed-SKU dispatch; low MOQ
Cycle rating: Rated to ~500 charge cycles; designed for the built-in battery position on dual-battery ThinkPad platforms

Product Description

he 01AV489 is the internal battery for the ThinkPad T470, T480, A475, A485, and TP25 platforms — the built-in cell that occupies the soldered battery position in the dual-battery architecture Lenovo introduced with this generation. Buyers sourcing for these devices need to distinguish between this internal unit and the separate external battery; the two are different components on the same platform and are not interchangeable.

The ThinkPad T470/T480 generation introduced a two-battery system where total runtime draws from both an internal and an external pack. The internal battery covered by this P/N is the component that remains installed when the external battery is removed — it is the unit most frequently overlooked in fleet battery replenishment plans and the one that most commonly causes runtime complaints when it degrades unnoticed.

For stocking distributors and IT procurement teams maintaining T470/T480 fleet populations, the 01AV489 line covers the internal battery position across all five device types in this generation family under a single SKU — a stocking simplification that matters for depots running dual-battery replenishment programs where the internal and external battery lines must be tracked separately.

Technical Parameters

Parameter	Detail
Battery Model	01AV489
Compatible Part Numbers	01AV489 · SB10K97577 · 01AV419 · SB10K97576 · 01AV420 · 01AV421 · SB10K97578 · 3ICP6/38/64
Brand Compatibility	Lenovo
Voltage	11.46V nominal (some listings show 11.4V — rounded figure; 11.46V is the documented spec per specialist parts sources)
Capacity	~2095–2100mAh
Energy	24Wh
Cell Type	Li-ion
Cell Configuration	3-cell
Color	Black
Condition	New, OEM-compatible replacement
Cycle Life	~500 cycles
Certifications	CE · RoHS · UN38.3
Warranty	12 months
Package Includes	1 × 01AV489 internal replacement battery
Compatible Laptop Models	ThinkPad T470 (20HD / 20HE) · ThinkPad T480 (20L5 / 20L6) · ThinkPad A475 · ThinkPad A485 (20MU / 20MV) · ThinkPad TP25 (Anniversary Edition 25) · Internal/built-in battery position only. Not compatible with T470S, T480S, T490, T14, P51S, or P52S series.
Application	Internal replacement laptop battery — OEM-grade replacement, MSP service contract supply, insurance repair fulfillment
Supply Type	Factory-direct wholesale · From stock · Mixed-SKU orders accepted

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.

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Features & Advantages

✅ 🔋 Cell Vendor Sourcing Across the 01AV-Series Production Line

The 01AV489, 01AV419, 01AV420, and 01AV421 are the same physical 11.46V 24Wh battery produced with cells sourced from different vendors across production batches — the suffix numeral distinguishes the cell source, not the application or form factor. For wholesale procurement, this means that holding stock under any single P/N in this cross-reference set satisfies demand across all four, since the ThinkPad EC identifies the battery by its EEPROM chemistry profile, not by P/N suffix. Grade-A Li-ion cells in this line are rated to approximately 500 cycles, covering the typical 2–3 year corporate deployment window for T470/T480 fleets before a scheduled replacement event.

✅ 🖥️ Internal Battery Coverage Across Five T-Series Device Lines

A single 01AV489 stock position covers the internal battery for the ThinkPad T470, T480, A475, A485, and TP25 — all five device lines that share this dual-battery architecture. The T470 type codes 20HD/20HE and T480 type codes 20L5/20L6 are confirmed in this compatibility range, alongside A485 type codes 20MU/20MV. ThinkPad T470 and A475 units fit the same battery position as the T480 and A485 without connector adaptation. This P/N does not cover the T470S, T480S, T490, or T14 series — those models use different internal battery connectors and are a separate stock line.

✅ ⚙️ Dual-Battery EC Behavior and BMS Interaction on ThinkPad T-Series

When a replacement internal battery is seated on the ThinkPad T470/T480 platform, the EC queries both battery positions simultaneously during the POST sequence — and a BMS profile mismatch on the internal cell generates a warning in Lenovo Power Manager that flags both batteries as faulted, even when the external battery is healthy. This occurs because ThinkPad T-series firmware tracks the combined charge state across both cells and recalculates total capacity from the EEPROM data of each. This battery’s BMS implements over-discharge cutoff as the primary protection function, with thermal shutdown and overcharge ceiling set to the OEM dual-battery charge coordination window. The EEPROM profile matches the EC’s expected parameters for the internal position, clearing the combined battery status flag on first boot.

✅ 📦 Fleet Rollout Sequencing for Dual-Battery Replenishment Programs

IT procurement teams managing T470/T480 fleet battery replacements frequently run into a sequencing problem: internal and external batteries are ordered separately, arrive on different timelines, and require different installation procedures — creating a two-stage service event per device. Stocking the 01AV489 replacement battery alongside the corresponding external battery P/N from the same wholesale order eliminates the first half of that sequencing problem. Wholesale orders covering both battery positions for the T470/T480 fleet can be consolidated into a single replenishment line, reducing the number of separate service dispatch events per device refresh cycle.

✅ 🌍 Platform-Specific Procurement Advantage: Internal Battery Often Unlisted

A common sourcing gap on the T470/T480 platform is that distributor catalogs and parts platforms frequently list only the external battery for these devices, leaving the internal battery as an unlisted item that buyers must identify and source separately. This 01AV489 line is stocked as an explicit catalog item, with the internal battery position clearly documented and cross-referenced — reducing the research overhead for procurement managers and repair technicians who have encountered the unlisted-internal-battery problem on this platform before. Mixed-SKU orders combining this internal battery line with the external battery P/N for the same fleet are accepted from a single purchase order.

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.

Available shipping methods:

Air freight (urgent, smaller volume)
Sea freight (cost-effective for bulk)
Rail / Truck (subject to destination)
Express channels

Compliance & Documents:

Documents available: UN38.3 / MSDS / Transport Test Report (if applicable)
Compliant packaging and carton labeling can be arranged based on the chosen shipping method.

Shipping terms:

EXW / FOB / CIF / DDP available

FAQ

Q1: The 01AV489 and 01AV421 are both listed as compatible with the T470 and T480. What is the actual difference between them, and can either one be ordered interchangeably?

A1: The difference is production batch cell sourcing, not application or specification. The 01AV489, 01AV419, 01AV420, and 01AV421 are all FRU designations for the same 11.46V 24Wh internal battery — each suffix number identifies the cell vendor used in that particular manufacturing run. All four P/Ns share identical voltage, capacity, connector, and EEPROM profile. The ThinkPad EC authenticates the battery by reading chemistry ID and design capacity from EEPROM; it does not distinguish between the four FRU numbers. For wholesale stock ordering, any of the four P/Ns placed on a purchase order fulfills demand across the entire T470/T480-generation internal battery population.

Q2: Some sources list this battery at 11.4V and others at 11.46V. Which voltage is correct for parts ordering and import documentation?

A2: 11.46V is the documented nominal voltage per specialist parts sources. The 11.4V figure appearing in a number of aftermarket listings is a rounded approximation of the same 3-cell Li-ion chemistry. For import declarations, parts orders, and any documentation requiring a stated design voltage, 11.46V is the accurate value to record. Both figures describe the same battery — the discrepancy reflects rounding convention in secondary listings, not a specification variant.

Q3: A repair technician has a ThinkPad T480 showing runtime issues but the external battery tests healthy. Can the internal battery be replaced independently?

A3: Yes — the internal and external batteries on the T470/T480 platform are independent components that can each be replaced without affecting the other. A repair technician can confirm the internal battery is the degraded unit by checking Lenovo Power Manager, which reports the charge state and wear percentage of each battery position separately. When only the internal battery shows high wear, replacing the 01AV489 without touching the external battery restores the full dual-battery runtime capacity. Installation requires removing the back cover and disconnecting the battery cable — no other components need to be removed on the T480 for this procedure.

Q4: After replacing the internal battery with a new 01AV489, Lenovo Power Manager shows the combined battery percentage dropping erratically during the first charge cycle. Is this normal?

A4: This behavior is expected on the first cycle after an internal battery replacement. The ThinkPad T470/T480 firmware calculates combined runtime from the charge state of both battery positions simultaneously, and the new internal battery’s capacity baseline has not yet been registered by the EC. The combined percentage display can fluctuate until the EC completes one full charge-discharge cycle on the new internal cell and recalibrates its contribution to the total capacity calculation. Run both batteries down to below 15%, charge fully without interruption, then restart. The combined display stabilizes after this conditioning cycle.

Q5: We need to order internal and external batteries for the same T470/T480 fleet — can both battery positions be covered on one order, and what information should we submit?

A5: Both battery positions for the T470/T480 fleet can be combined on a single purchase order. What a buyer does not need to do is submit two separate orders or work through two different supplier accounts — the internal battery (01AV489 line) and the external battery P/N for the same platform are processed from the same stock pool as a single consolidated order. Submit your full P/N list for both battery positions, the device type codes or series names in your fleet, destination country, and directional quantities per line item. Contact us directly for a consolidated volume price covering both battery positions.

Q6: Does the 01AV489 fit the ThinkPad T470S or T480S, which are the slim variants of the same platform generation?

A6: No. The T470S and T480S use a different internal battery design with a different connector and form factor — they are not compatible with the 01AV489 line despite sharing the same platform generation name. The slim-series models use the 01AV478 / 01AV479 / 01AV480 battery family, which operates at 11.58V 57Wh and physically cannot seat in the standard T470/T480 chassis. Buyers sourcing batteries for a mixed fleet that includes both standard and slim T-series models must stock these as two separate battery lines. If T470S or T480S units are present in your fleet, those P/Ns require a separate order.