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Lenovo L21M6P70 Replacement Battery vs Lenovo L23C4P70 Replacement Battery: Comparison

L21M6P70 Replacement Battery vs L23C4P70 Replacement Battery capacity wh compared

Expect a near tie. The closest thing to a difference is capacity wh, L21M6P70 Replacement Battery 94 Wh against L23C4P70 Replacement Battery 90 Wh. On battery model code there is little in it, L21M6P70 on the L21M6P70 Replacement Battery versus L23C4P70 on the L23C4P70 Replacement Battery. Oem spare part number is not the same on both, L21L6P70 on the L21M6P70 Replacement Battery versus L23D4P70 on the L23C4P70 Replacement Battery. There is a split on nominal voltage as well, 11.52 V on the L21M6P70 Replacement Battery versus 15.6 V on the L23C4P70 Replacement Battery. There is a split on compatible models as well, Lenovo ThinkPad P16 Gen 2 on the L21M6P70 Replacement Battery versus Lenovo ThinkPad P1 Gen 7 on the L23C4P70 Replacement Battery. They differ on replaces part numbers too, L21L6P70 on the L21M6P70 Replacement Battery versus L23D4P70 on the L23C4P70 Replacement Battery.

Who each one is for

The L21M6P70 Replacement Battery is the one to take for ThinkPad P16 Gen 1 and Gen 2 owners, though it is the wrong buy for ThinkPad P15 or other Lenovo mobile workstation lines. Buy the L23C4P70 Replacement Battery for ThinkPad P1 Gen 7 owners, though it is not the pick for earlier ThinkPad P1 generations.

What L21M6P70 Replacement Battery and L23C4P70 Replacement Battery have in common

Where they agree, they agree completely, capacity basis, expected firmware state and shipping classification included, so the decision does not turn on any of those.

Specs and benchmarks

  • Brand

    Lenovo L21M6P70 Replacement Battery
    Lenovo
    Lenovo L23C4P70 Replacement Battery
    Lenovo
  • Battery Model Code

    Lenovo L21M6P70 Replacement Battery
    L21M6P70
    Lenovo L23C4P70 Replacement Battery
    L23C4P70Best
  • OEM Spare Part Number

    Lenovo L21M6P70 Replacement Battery
    L21L6P70
    Lenovo L23C4P70 Replacement Battery
    L23D4P70
  • Nominal Voltage

    Lenovo L21M6P70 Replacement Battery
    11.52 V
    Lenovo L23C4P70 Replacement Battery
    15.6 V
  • Capacity Wh

    Lenovo L21M6P70 Replacement Battery
    94 WhBest
    Lenovo L23C4P70 Replacement Battery
    90 Wh-4%
  • Capacity Basis

    Lenovo L21M6P70 Replacement Battery
    Seller Claim
    Lenovo L23C4P70 Replacement Battery
    Seller Claim
  • Expected Firmware State

    Lenovo L21M6P70 Replacement Battery
    full_function
    Lenovo L23C4P70 Replacement Battery
    full_function
  • Shipping Classification

    Lenovo L21M6P70 Replacement Battery
    UN3481
    Lenovo L23C4P70 Replacement Battery
    UN3481
  • Compatible Models

    Lenovo L21M6P70 Replacement Battery
    Lenovo ThinkPad P16 Gen 2 (Core i9-13980HX, RTX 5000 Ada, 64GB)
    Lenovo L23C4P70 Replacement Battery
    Lenovo ThinkPad P1 Gen 7 (Core Ultra 9 185H, RTX 4070, 64GB)
  • Replaces Part Numbers

    Lenovo L21M6P70 Replacement Battery
    L21L6P70
    Lenovo L23C4P70 Replacement Battery
    L23D4P70

    Which one should you pick?

    Choose Lenovo L21M6P70 Replacement Battery if you want the higher capacity wh (94 Wh vs 90 Wh).

    Choose Lenovo L23C4P70 Replacement Battery if you already have it on hand or find it at a lower price.

    More comparisons in Laptop Batteries