BTI 312-1387-BTI 4-Cell 14.4V Li-Ion Battery

Power up your Dell Inspiron and other compatible laptops with the BTI 312-1387-BTI 4-Cell 14.4V Li-Ion Battery. This high-performance replacement battery is engineered to deliver dependable run-time, reliable power, and solid safety features for a wide range of models. Designed to fit a variety of Dell Inspiron 14 and 15 configurations, this 4-cell Li‑Ion pack offers a compact, lightweight solution that keeps you productive on the go. Built to meet exacting standards, it provides consistent voltage delivery, balanced discharge, and seamless plug‑and‑play installation for a hassle-free swap.

• Long-lasting power with a 4‑cell Li‑Ion configuration delivering steady energy for compatible Inspiron laptops, enabling everyday tasks, streaming, work sessions, and entertainment without frequent recharging.
• Wide compatibility across Dell Inspiron lines and multiple part numbers (e.g., 24DRM, 4WY7C, G35K4, V8VNT, 312-1387, 6KP1N, N121Y, X29KD, 451-12097, DJ9W6, PVJ7J, XCMRD, 451-12108, FW1MN, T1G4M, XRDW2, INSPIRON 14 and 15 series variants), making it a versatile replacement option.
• Enhanced safety and reliability with an integrated protection circuit that guards against overcharge, short circuit, and overheating, helping to extend battery life and protect your laptop internals.
• Easy, plug‑and‑play installation that lets you swap an old battery for this BTI replacement quickly, without special tools, and with a design that aligns with the original battery bay for a secure, snug fit.
• Lightweight, compact design that maintains a slim profile for portable use, so you can work, study, or travel without adding unnecessary bulk to your laptop setup.

Technical Details of BTI 312-1387-BTI

• Voltage: 14.4V
• Cell configuration: 4-cell Li‑Ion
• Type: Replacement battery compatible with a wide range of Dell Inspiron models and listed SKUs
• Part numbers and compatibility highlights: 312-1387; 24DRM; 4WY7C; G35K4; V8VNT; 6KP1N; N121Y; X29KD; 451-12097; DJ9W6; PVJ7J; XCMRD; 451-12108; FW1MN; T1G4M; XRDW2
• Compatible laptop families: INSPIRON 14 (3421, 3437, 3442, 3443, 14R 5421, 14R 5437) and INSPIRON 15 (3521, 3531, 3537, 35…)
• Key benefits: reliable runtime, balanced discharge, and a safety‑first design for everyday laptop use

How to Install BTI 312-1387-BTI

• Power off your laptop and unplug the charger before starting any battery replacement.
• Close the lid and flip the device over to access the back panel; remove the screws securing the battery cover and carefully lift away the panel.
• Detach the old battery connector from the motherboard by gently unplugging the harness; inspect the connector for any debris or damage.
• Align the BTI 312-1387-BTI battery with the battery bay, connect the harness securely, and press the battery into place until it sits firmly in the bay.
• Reattach the back panel, replace the screws, plug in the charger, and power on the device to begin charging and calibration. Allow the battery to reach a full charge before heavy usage for optimal performance.

Frequently asked questions

Q: Is this BTI battery compatible with my Dell Inspiron model?
A: It is designed to fit a wide range of Dell Inspiron models in the 14 and 15 series, including several listed SKUs and model numbers such as 14 (3421, 3437, 3442, 3443), 14R (5421, 5437), and 15 (3521, 3531, 3537, 35…). If your device matches the compatibility notes for 4‑cell 14.4V Li‑Ion batteries, this BTI replacement should be suitable.

Q: What runtime can I expect from this battery?
A: Runtime varies with usage, screen brightness, and power settings. As a 4‑cell 14.4V Li‑Ion replacement designed for Inspiron laptops, it provides a solid balance of capacity and portability, intended to offer hours of standard productivity and multimedia use on a single charge.

Q: Are safety features included?
A: Yes. The BTI 312-1387-BTI battery includes an integrated protection circuit to guard against overcharge, short circuits, and overheating, helping to safeguard your laptop and extend battery life.

Q: How do I maximize battery life and longevity?
A: Use power‑saving modes, reduce screen brightness, and perform regular battery calibrations as needed. When storing the battery for extended periods, keep it in a cool, dry place and avoid exposing it to extreme temperatures.

Q: Is installation difficult?
A: Not with basic care. The battery is designed for a straightforward swap in most compatible Dell Inspiron models. Follow the installation steps carefully to ensure a secure fit and reliable performance.