DELL JK6Y6 40Wh laptop battery for Inspiron 5400 5406 7300 7405 2-in-1 Silver
40 Wh lithium-ion replacement battery fits Dell Inspiron 5400, 5406, 7300 and 7405 2-in-1 models
- Battery typeLithium-Ion
- Compatible withCompatible with Dell Inspiron 5400 2-in-1 5406 2-in-1 7405 2
- 40 Wh capacity powers Dell Inspiron 2-in-1 models through extended work sessions
- Lithium-ion chemistry delivers stable 11.25 V output for consistent performance
- Four premium cells built to withstand daily charge cycles over long haul
- 100 % compatible with Inspiron 5400 5406 7300 7405 ensuring perfect fit
- CE and RoHS certified meeting recognised safety and environmental standards
Dell Inspiron 2-in-1 replacement battery
This 40 Wh lithium-ion pack is built for Dell Inspiron 5400 2-in-1, 5406 2-in-1, 7300 2-in-1 and 7405 2-in-1 Silver models. It restores mobile power for owners whose original cell no longer holds a useful charge.
40 Wh capacity and 11.25 V operation
The four-cell design delivers 40 Wh at 11.25 V, matching the factory specification for the listed Inspiron 2-in-1 series. It will run out when the workload exceeds the cell rating, so buyers needing longer unplugged time should look at higher-capacity alternatives.
CE and RoHS certified with one-year replacement
The pack carries CE and RoHS marks confirming safety and environmental compliance. A one-year replacement warranty covers defects in materials or workmanship, and the supplier notes two different batteries exist for these models — buyers must verify the physical match before fitting.
How it compares
Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.
- Price $25.99
- Cheaper than about 60% of the 27,790 comparable items (median $30.99).
Specifications
| Power | |
|---|---|
| Battery type | Lithium-Ion |
| Compatibility | |
| Compatible with | Compatible with Dell Inspiron 5400 2-in-1 5406 2-in-1 7405 2-in-1 7300 2-in-1 Silver |
Questions about this item
Will the 40Wh battery fit my Inspiron 5400 2-in-1 alongside the original chassis screws?
The battery is built to match the exact dimensions of the original pack for Inspiron 5400, 5406, 7300 and 7405 2-in-1 models, so the existing screw holes and latch points line up without modification.
How can I verify the 11.25V pack is delivering the rated 40Wh after installation?
Charge the laptop to 100%, then run the built-in Dell BIOS battery health check or Windows battery report; both will show the design capacity and current full-charge capacity in watt-hours.
Does the box include the 4-cell lithium-ion battery only, or are tools and adhesive strips supplied as well?
The package contains the replacement battery itself; opening tools and any required adhesive strips are not included and must be sourced separately.
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