02DL006 15.36V 51Wh ThinkPad X1 Carbon 7th 8th Gen X1 Yoga 4th 5th Gen Battery | Manufacturer-Direct Stock

OEM P/N: 02DL006 (SB10K97644 / 5B10W13932); cross-references 02DL004 (L18L4P71 / SB10K97642 / 5B10W13930), 02DL005 (L18M4P72 / SB10K97643 / 5B10W13931), L18C4P71, L18L4P71, SB10T83173, SB10T83174
Specs: 15.36V · 51Wh · 3325mAh · Li-ion · Black — 51Wh OEM replacement battery
Compatibility: ThinkPad X1 Carbon 7th Gen / 8th Gen; ThinkPad X1 Yoga 4th Gen / 5th Gen
Wholesale supply: Single stock position covers four ThinkPad X1 premium-line device types across two model years; mixed-SKU orders accepted, low MOQ
Voltage tier: 15.36V nominal unit; the 15.36V / 15.4V discrepancy in aftermarket listings reflects rounding — OEM-documented nominal is 15.36V

Product Description

The 02DL006 is the standard 51Wh battery for the ThinkPad X1 Carbon 7th and 8th Gen alongside the X1 Yoga 4th and 5th Gen — four premium enterprise devices that share a single battery line across the 2019 and 2020 production window. Procurement buyers managing X1-series fleet populations can stock one battery P/N against all four device types with no connector or form factor variation.

ThinkPad X1 Carbon 7th Gen and 8th Gen units account for a substantial share of active enterprise fleet inventory globally, particularly in corporate IT, financial sector, and government laptop pools where premium ultrabook configurations remain in use well past initial deployment. The X1 Yoga 4th and 5th Gen convertibles draw from the same battery population, extending this P/N’s coverage to a segment of the fleet that is often overlooked in separate stocking decisions.

Where OEM-grade replacement accuracy matters most for institutional buyers — accurate Lenovo Vantage battery health reporting, consistent EC authentication, and valid warranty tracking — this battery line delivers without requiring SKU diversification across the four covered device families. That compressed footprint is the procurement argument for stocking distributors and IT asset teams managing mixed X1 premium-line populations.

Technical Parameters

Parameter	Detail
Battery Model	02DL006
Compatible Part Numbers	02DL006 · SB10K97644 · 5B10W13932 · 02DL004 · L18L4P71 · SB10K97642 · 5B10W13930 · 02DL005 · L18M4P72 · SB10K97643 · 5B10W13931 · L18C4P71 · SB10T83173 · SB10T83174
Brand Compatibility	Lenovo
Voltage	15.36V nominal (some aftermarket listings show 15.4V — rounded figure; OEM-documented nominal is 15.36V)
Capacity	3325mAh
Energy	51Wh
Cell Type	Li-ion
Cell Configuration	4-cell
Color	Black
Condition	New replacement — OEM-grade compatible
Cycle Life	~500 cycles
Certifications	CE · RoHS · UN38.3
Warranty	12 months
Package Includes	1 × 02DL006 replacement battery
Compatible Laptop Models	ThinkPad X1 Carbon 7th Gen (20QD / 20QE) · ThinkPad X1 Carbon 8th Gen (20U9 / 20UA) · ThinkPad X1 Yoga 4th Gen (20QF / 20QG / 20SA / 20SB) · ThinkPad X1 Yoga 5th Gen (20UB / 20UC)
Application	Replacement laptop battery — multi-brand service depot, government asset maintenance, volume replenishment
Supply Type	Wholesale · From stock; mixed-SKU orders welcome

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

✅ 🔋 Replacement Interval Economics on the X1 Carbon Platform

ThinkPad X1 Carbon 7th and 8th Gen units in corporate fleets typically operate on a 3–4 year refresh cycle. Against that deployment window, a 500-cycle-rated replacement battery maps directly to the remaining service life: a device entering its second year at battery replacement has approximately 2–3 years of useful life remaining, and 500 cycles at one full cycle per business day covers that window with capacity to spare. Grade-A Li-ion cells in this battery are rated to 500 cycles, meaning a single replacement unit carries a fleet device through the remainder of its corporate service window without a second battery intervention.

✅ 🖥️ Four X1 Premium-Line Devices, One Battery Stock Position

The 02DL006 covers ThinkPad X1 Carbon 7th Gen (20QD / 20QE), X1 Carbon 8th Gen (20U9 / 20UA), X1 Yoga 4th Gen (20QF / 20QG / 20SA / 20SB), and X1 Yoga 5th Gen (20UB / 20UC) — all from a single battery line. The three L18-series P/Ns (L18C4P71, L18L4P71, L18M4P72) and FRU codes (02DL004, 02DL005, 02DL006) are fully interchangeable across this population. No fitment variation exists between the Carbon and Yoga chassis within these generations; ThinkPad X1 Carbon 8th Gen and X1 Yoga 5th Gen units accept the same battery without modification.

✅ ⚙️ ThinkPad X1 EC Diagnostic Behavior on Battery Authentication

At first power-on after battery installation, ThinkPad X1-series firmware runs an EC query that reads the battery’s design capacity and chemistry ID from EEPROM. A battery with a mismatched BMS profile — most often caused by over-discharge protection set outside the OEM charge window — returns a “plugged in, not charging” state in Windows and a warning flag in Lenovo Vantage without generating a POST error, making the fault harder to isolate at a service depot. This battery’s BMS architecture places over-discharge cutoff and overcharge threshold management as the primary protection layers, with short-circuit response and thermal limit as secondary safeguards, all aligned to the X1 platform’s EC-expected parameters. The EEPROM profile passes the authentication query on first insertion.

✅ 📦 Purchase Order Simplification for X1 Carbon and X1 Yoga Fleet Orders

Enterprise IT procurement teams maintaining both X1 Carbon and X1 Yoga populations frequently split battery replenishment across two separate line items — one per chassis model — even though the physical battery is identical. Consolidating to a single 02DL006 replacement battery line item reduces purchase order length, simplifies receiving inspection, and removes the need for separate bin locations in a parts depot. Wholesale orders are accepted at low MOQ, and this line can be ordered alongside other ThinkPad battery P/Ns in a single consolidated replenishment.

✅ 🌍 Cross-Brand Fleet Sourcing on a Single Order

Enterprise service depots and managed service providers supporting mixed-brand laptop populations — ThinkPad X1 alongside HP EliteBook 800-series or Dell Latitude 5000/7000-series — often face a minimum order friction point when sourcing from brand-specific distributors. This battery line can be ordered on the same purchase order as HP and Dell aftermarket battery P/Ns from this supplier, eliminating the overhead of splitting a single replenishment event across multiple vendor accounts. For MSPs running quarterly parts stock reviews, that consolidation reduces procurement administration per replenishment cycle.

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: Some listings show this battery under 02DL006, others under L18C4P71 or L18L4P71. Are these different products or the same battery under different naming systems?

A1: They are the same physical battery documented under two separate naming systems. The 02DL-series codes (02DL004, 02DL005, 02DL006) are Lenovo FRU numbers used in hardware maintenance manuals and official parts ordering. The L18-series codes (L18C4P71, L18L4P71, L18M4P72) are battery assembly P/Ns — the suffix letter within each series identifies the cell manufacturer source for that production batch. All six P/Ns refer to the same 4-cell 15.36V 51Wh battery and are fully interchangeable at the device level. For wholesale ordering, any of these P/Ns placed on a purchase order draws from the same stock line.

Q2: Some sources list this battery at 15.4V and others at 15.36V. Which is correct for documentation purposes?

A2: 15.36V is the OEM-documented nominal voltage for this battery line. The 15.4V figure appearing in some aftermarket listings is a rounded approximation of the same 4-cell Li-ion chemistry. For customs declarations, import documentation, and any parts order that requires a stated voltage, 15.36V is the accurate figure to use. Both values describe the same battery — the rounding difference does not indicate a specification variant and does not affect device compatibility.

Q3: Does this battery fit both the clamshell X1 Carbon and the convertible X1 Yoga, or only one chassis type?

A3: It fits both. The ThinkPad X1 Carbon 7th Gen, X1 Carbon 8th Gen, X1 Yoga 4th Gen, and X1 Yoga 5th Gen all use the same battery connector position and form factor despite the different chassis designs. The L18-series battery was designed as a shared component across both product lines for the 2019–2020 production window. Service technicians replacing batteries on either chassis type can order from the same stock; no model-specific variant exists within this generation range.

Q4: After installing a new 02DL006, Windows shows “Plugged in, not charging” even with the adapter connected. What is the first diagnostic step?

A4: This symptom on ThinkPad X1-series typically indicates an EC-level battery registration issue rather than a hardware fault. The embedded controller requires one complete charge-discharge cycle to register the new battery’s design capacity parameters against its internal baseline. Disconnect the adapter, run the battery down to below 10%, then reconnect and charge uninterrupted to 100%. If the “plugged in, not charging” state persists after the full cycle, open Lenovo Vantage, navigate to Power settings, and run the battery reset function — this forces the EC to clear the cached capacity baseline and reread the new battery’s EEPROM data.

Q5: How does ordering work for a fleet administrator managing quarterly battery replenishment across ThinkPad X1 Carbon, X1 Yoga, and HP EliteBook models?

A5: What a fleet administrator does not need to do is submit separate orders per device brand or per battery model. Mixed-SKU orders combining 02DL006 units for X1 Carbon and X1 Yoga alongside HP EliteBook battery P/Ns are processed from the same fulfillment stock under a single purchase order. Submit your consolidated P/N list with the destination country, directional quantities per line item, and your preferred shipment frequency — we return a volume price for the full order. Quarterly standing orders and blanket order structures are supported for fleets requiring predictable replenishment scheduling.

Q6: Is this the only battery available for the ThinkPad X1 Carbon 7th and 8th Gen, or does a higher-capacity option exist?

A6: The 51Wh unit covered here is the standard and only capacity option for the X1 Carbon 7th and 8th Gen as documented across OEM parts sources — no higher-capacity battery variant exists for these specific generations within the L18-series line. This differs from some other ThinkPad platforms where two Wh tiers are available. The X1 Carbon 9th Gen (2021) and later generations use a different battery series and are not compatible with this P/N. For buyers sourcing batteries across multiple X1 Carbon generations, the 9th Gen and beyond require a separate parts line.