No Sew HW03XL laptop battery 11.34V 3.44Ah 41.04Wh 3-cell Li-ion black

11.34 V 3-cell Li-ion replacement

This 11.34 V lithium-ion battery replaces the original pack in compatible HP Pavilion 15-EG, 15-EH, 17-CN and 17-CP notebooks. It delivers 3.44 Ah and 41.04 Wh across three cells and is built with A-grade cells rated for up to 500 recharge cycles. The black unit weighs 8.7 ounces and carries CE, FCC and RoHS certification with integrated short-circuit, over-voltage, over-current and discharge protection.

Practical limits of the lithium-ion chemistry

Capacity will gradually decline after repeated charge cycles, so runtime shortens as the battery ages. The pack supplies a fixed 11.34 V output; it cannot adapt to laptops that require a different voltage. Protection circuits shut the battery down if current, voltage or temperature exceed safe thresholds, which may interrupt work until the pack cools or the load is reduced.

What to verify before ordering

Confirm that your laptop model appears in the listed compatibility series such as 15-eg0070wm, 15-eh1052wm, 17-cn0025nr or 17-cp0700dx. Check that the original part number matches HW03XL, L97300-005, HSTNN-IB90 or L96887-421. Ensure the chassis accepts a 3-cell pack with the same physical dimensions and connector orientation. Buyers who need a higher-capacity 4-cell or 6-cell alternative cannot use this unit.