IEFUU Laptop Battery 14.6V 41.6Wh for HP 15/17 Series

IEFUU Replacement 919700-850 / JC03 JC04 is a direct-fit 14.6V, 41.6Wh Li-ion laptop battery made to replace OEM packs in many HP 15 and 17 series notebooks.

If your HP notebook shows short run-time, a swollen cell warning, or fails to hold charge, a compatible replacement battery restores mobile use without the wait for factory service. This IEFUU battery is designed to match the original electrical specifications and connector layout used by HP part numbers including JC03 and JC04, and cross-references a range of OEM codes so you can swap it in with confidence.

Which HP models and part numbers does this battery replace?

This replacement is built to be compatible with a long list of HP model identifiers and OEM part numbers. It fits many 15-inch and 17-inch Pavilion and similar lines that originally shipped with JC03 or JC04 batteries.

• Common part numbers: 919700-850, 919701-850, 919681-421, 919682-421, 919681-221, 919682-121, 919682-831.
• Additional references: hstnn-lb7v, HSTNN-DB8E, TPN-W129, TPN-C129, TPN-C130.
• Example laptop series: HP 15-bs, 15-bw, 17-bs and specific SKUs like 17-bs067cl and 15-bs212wm.

What are the technical specifications and safety features?

This IEFUU battery uses lithium-ion cells and matches the factory voltage and capacity so performance stays consistent with the original pack. Built-in protection circuits reduce the risk of overcurrent, overcharge and deep discharge while temperature monitoring helps maintain safe operation during daily use.

• Chemistry: Li-ion; Voltage: 14.6V; Capacity: 41.6Wh for balanced runtime and weight.
• Protection: overcurrent, anti-overcharge, anti-overdischarge, and temperature control.
• Durability: rated for up to roughly 500 recharge cycles under normal conditions.

How do I install this battery and ensure compatibility?

Installation is straightforward for user-replaceable packs: power down the laptop, remove the original battery following HP instructions, then seat the IEFUU pack until it clicks. Confirm compatibility by matching the contact layout and the OEM part number printed on the original battery.

• Turn off and unplug the notebook before replacing the battery.
• Verify the connector shape and screw locations match the existing battery.
• After installation, charge fully and check battery status in the OS to confirm recognition.

Will performance match the original HP battery?

This replacement is engineered to deliver similar runtime and charging behavior as the OEM pack when used under the same workload and power settings. Real-world battery life will still vary by applications, display brightness, wireless usage and age-related cell wear over many charge cycles.

• Designed to mirror factory voltage and capacity for predictable performance.
• Protection circuits help preserve long-term health and safe charging.
• Expect typical lifecycle behavior: capacity slowly reduces after repeated full cycles.

Who is this for: The IEFUU 919700-850 / JC03 JC04 replacement battery is aimed at HP laptop owners who need a cost-effective, reliable swap for aging or failing batteries in 15-inch and 17-inch notebooks. It suits DIY users comfortable opening the battery compartment, technicians servicing multiple machines, and anyone wanting to restore portable runtime without buying a new laptop. Always verify your original battery part number and connector shape before purchase to ensure a proper fit.