BTI 33YDH-BTI 15.2V 56Wh Li-Ion Battery for Dell Inspiron, Latitude, and Vostro Laptops

The BTI 33YDH-BTI 15.2V 56Wh Li-Ion Battery is engineered for performance and longevity, delivering reliable, high-capacity power to compatible Dell laptops. If you rely on your notebook for work, study, gaming, or streaming, this replacement battery provides the freedom to work unplugged for longer periods between charges. Built to meet or exceed OEM standards, this 56Wh pack offers consistent voltage delivery, stable runtime, and a secure fit that mirrors the original battery experience. Whether you own an Inspiron 17 series, Latitude 3310 through 3590, or Vostro 7570 and 7580, you can count on this battery to restore your portable computing sunken hours to full strength.

• Long-lasting energy for demanding tasks: With a 56Wh capacity and 15.2V output, this battery delivers extended runtime for productivity apps, video conferencing, multi-tab browsing, and light-to-moderate gaming. It’s designed to reduce the need to hunt for outlets during long flights, bus rides, or study sessions, so you stay productive wherever you are.
• Broad compatibility with Dell laptops: Specifically designed to replace or upgrade the battery in Dell Inspiron 17 series models (including 7778, 7779, 7570, 7577, 7586, 7773, 7778, 7779, 7786), Latitude 3310–3590, and Vostro 7570/7580. This makes it an excellent choice for owners looking to refresh multiple devices or to standardize spare batteries across a small fleet.
• Premium Li-Ion chemistry with safety safeguards: The 15.2V Li-Ion cell chemistry provides strong energy density and reliable cycle life while built-in protection circuits guard against overcharge, short-circuit, and thermal hazards. This focus on safety helps protect your device and prolongs overall battery health over time.
• OEM-grade build and fit: The BTI 33YDH-BTI battery is engineered to match the physical footprint and connector layout of the original battery. Its precise dimensions and connector alignment ensure a secure connection, reliable power delivery, and easy swap during maintenance or upgrades.
• Ready-to-use replacement option: This battery is designed for straightforward installation with user-friendly replacement steps. It provides a seamless experience comparable to the factory battery, helping you restore peak performance without the need for professional service.

Technical Details of BTI 33YDH-BTI 15.2V 56Wh Li-Ion Battery

• Model / Part Numbers: BTI 33YDH-BTI, with alternative references including 033YDH, 7FHHV, 0PVHT1, 99NF2, PVHT1, 451-BCDM
• Voltage: 15.2V
• Capacity: 56Wh
• Chemistry: Lithium-ion (Li-Ion)
• Type: Battery pack for replacement in select Dell notebooks
• Compatible models (selected): Dell Inspiron 17 series (including 7778, 7779, 7570, 7577, 7586, 7773, 7778, 7779, 7786), Latitude 3310, 3380, 3400, 3480, 3490, 3500, 3580, 3590, and Vostro 7570, 7580
• Cell configuration (typical): High-quality Li-Ion cells engineered for reliable, stable performance and safe charging cycles
• Protection features: Built-in safeguards against overcharge, over-discharge, short-circuit, and overheating to protect both battery and device

How to Install BTI 33YDH-BTI 15.2V 56Wh Li-Ion Battery

To ensure a safe and successful installation, follow these steps carefully. Note that the exact steps may vary slightly depending on your laptop model and shell design. Always power down the device and unplug from any power source before starting.

• Prepare your workspace: Work on a clean, flat surface with good lighting. Have a small screwdriver set handy if your model requires screws to access the battery compartment. Remove any liquids or static-prone materials from the area.
• Power down and disconnect: Shut down the laptop completely, then unplug the charger. If your model has a removable bottom cover, proceed to loosen the screws that secure the back panel and carefully detach the cover to expose the battery bay.
• Disconnect the old battery: Locate the battery connector and gently unplug it from the motherboard or system board. If necessary, remove screws or brackets securing the battery in place. Carefully lift the old battery away from the bay, avoiding any sharp edges or contacts.
• Prepare the new battery: Inspect the BTI 33YDH-BTI battery for any signs of damage during shipping. Align the connector with the motherboard port and ensure that the electrical contacts are clean and unobstructed. Some models require a specific orientation; follow the original battery’s alignment as a guide.
• Install the new battery: Slide the new battery into the battery bay, securing it with any screws or brackets that were removed earlier. Reconnect the battery connector to the system board, ensuring a snug, secure fit. Replace the back cover and tighten all screws evenly.
• Power on and test: Reconnect the charger, power on the laptop, and allow the battery to initialize. Verify the battery status in the operating system’s power tab, and perform a quick charge cycle to confirm proper charging behavior and runtime.
• Calibration and care: After initial use, perform a complete discharge and recharge cycle to calibrate the battery gauge. Avoid deep discharges and extreme heat. Use the charger that came with your device or a compatible, quality-rated charger to maintain battery health over time.

Frequently asked questions

• Q: Is this BTI 33YDH-BTI battery compatible with my Dell Inspiron 17 series model? A: It is designed to fit and replace batteries for multiple Dell models within the Inspiron 17 family (including 7778, 7779, 7570, 7577, 7586, 7773, 7778, 7779, 7786), as well as Latitude 3310–3590 and Vostro 7570/7580. To confirm compatibility, compare your original battery part numbers and connector layout with the BTI battery’s specifications and connector alignment.
• Q: What runtime can I expect from a 56Wh battery? A: Real-world runtime depends on usage, screen brightness, and power settings. For typical productivity tasks such as document editing, web browsing, and video streaming, you can expect several hours of unplugged use. Demanding gaming or graphics work will reduce runtime, but the 56Wh capacity provides a solid buffer for extended sessions compared to smaller packs.
• Q: Does this battery include safety features? A: Yes. The BTI 33YDH-BTI battery includes standard Li-Ion protections, such as overcharge and short-circuit protection, thermal safeguards, and careful cell balancing to promote safety and reliability during charging and operation.
• Q: How should I dispose of an old battery? A: Always follow local regulations for battery disposal. Do not throw Li-Ion batteries in household trash. Many communities offer recycling programs or designated e-waste drop-off locations. Proper disposal helps prevent environmental harm and supports safe handling of hazardous materials.
• Q: Can I use this battery to replace multiple laptops in my organization? A: If the laptops share the same model families listed in the compatibility notes (Dell Inspiron 17 series, Latitude 3310–3590, Vostro 7570/7580), this battery can serve as a common replacement across devices. Always verify the exact battery part number, voltage, and connector type before mass deployment to ensure a perfect fit and safe operation.