Nissan Sentra B17: Upgrading to Houny LiFePO4 Battery B24L

Unboxing the Houny LiFePO4 Battery

The packaging is quite robust. It features a dual-box design (outer and inner cartons) to ensure the lithium battery remains safe during shipping.

Dual-box packaging for extra protection.

Upon opening the inner box, the top is covered with protective foam.

The battery is securely nestled within the foam padding.

The Battery Unit

External view of the Houny LiFePO4 battery.

The battery posts are the larger T1 (European) style.

Installation Process

Required Tools

1. 10mm Wrench (Socket or Open-end)
2. OBD-II Memory Saver (For backup power)
3. Large-to-Small Terminal Adapters (If your car uses JIS small terminals)

Step 1: Connect Backup Power

Plug the memory saver into the OBD-II port. This ensures the car’s settings (ECU data, clock, etc.) are not wiped when the main battery is disconnected.

Step 2: Remove the Old Battery

1. Loosen the Negative (-) Terminal first and move it aside.
2. Loosen the Positive (+) Terminal.
3. Remove the battery hold-down bracket using your 10mm wrench.

Step 3: Terminal Adaptation

Since the Sentra B17 uses small (JIS) terminals, but the Houny battery has large posts, I installed copper terminal adapters. These sleeves sit over the battery posts, allowing the original terminal clamps to fit perfectly.

Step 4: Install the New Battery

1. Place the Houny battery into the tray.
2. Secure the hold-down bracket.
3. Connect the Positive (+) Terminal first.
4. Connect the Negative (-) Terminal last.

Conclusion

Upgrading to a LiFePO4 battery like the Houny unit provides much more stable voltage and a significantly longer lifespan compared to traditional lead-acid batteries. For Sentra owners, just be mindful of the terminal size mismatch and ensure you have the correct adapters before you start.