We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular gray laptop battery pack with connector pins

Battery Technology Inc.

Battery Technology Inc. L21L3P71-BTI power supply 39Wh

SKU CH-BP4S-5VSYF MPN L21L3P71-BTI

Replacement laptop battery for Lenovo T14 Gen3 AMD with a 39 Wh capacity

  • Product colorGray
  • Product typeComputer Accessories
  • Product weight1
  • Replacement battery for Lenovo T14 Gen3 AMD
  • 39 Wh capacity supports extended mobile use
  • Lightweight 1.0 kg design adds minimal bulk
  • Gray finish matches laptop aesthetics
  • Brand-new condition ensures full performance life

Replacement Battery for Lenovo T14 Gen3 AMD

This 39Wh lithium-ion pack replaces the original battery in Lenovo T14 Gen3 AMD laptops. It restores mobile runtime for professionals who rely on consistent power away from a desk. The BTI L21L3P71-BTI unit ships new in grey and weighs 1.0000 units.

Verify Exact Model Compatibility Before Ordering

Confirm that your laptop is a Lenovo T14 Gen3 AMD; other T14 generations or Intel variants use different battery packs. Check the existing battery label for part number L21L3P71 to ensure a direct match. No tools or specifications beyond the model number are required for validation.

Ready-to-Install Design Requires No Extra

The battery arrives as a complete, self-contained module with integrated connectors and mounting points. No separate cables, screws, drivers or calibration software are bundled or needed. Simply swap the old pack for this unit and the system recognises it immediately.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $81.99
Cheaper than about 75% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameBTI
Model nameL21L3P71-BTI
Product colorGray
Product typeComputer Accessories
Size & build
Shipping weight0.50 kg
Package size305 × 108 × 32 mm

Questions about this item

Does the L21L3P71-BTI include any installation tools or cables?

The battery ships as a single 39 Wh unit in gray; no tools, cables or extra hardware are included.

How do I confirm the L21L3P71-BTI is the correct capacity for my T14 Gen 3 AMD?

Match the 39 Wh rating and the BTI part number L21L3P71-BTI against the label on your original battery; this is the only capacity offered for this model.

What runtime change should I expect after fitting the 39 Wh L21L3P71-BTI?

A fresh 39 Wh pack restores the factory-rated battery life for the T14 Gen 3 AMD, replacing the degraded capacity of the old cell.

More in ATX Desktop Power Supplies

Similar items