RHKRKQN B31N1842 Laptop Battery for ASUS VivoBook

RHKRKQN B31N1842 is a brand-new 11.52V, 42Wh Li‑ion replacement battery engineered to restore runtime for compatible ASUS VivoBook S15 and related models.

If your ASUS VivoBook is showing short runtimes, unexpected shutdowns, or won’t hold charge, this RHKRKQN B31N1842 replacement is designed as a drop‑in compatible battery to bring back mobile productivity. It uses Grade A cells, ships with basic installation tools and instructions, and is sized to match the original B31N1842 form factor so you can swap batteries yourself or with technician help.

How do I know this battery fits my laptop?

Confirm compatibility by comparing your existing battery label and model number with B31N1842 and the supported model list. Also check the shape, connector position, and voltage printed on your original pack to ensure a correct match.

• Supported series: ASUS VivoBook S15 X513, X531, K531, S531, V531, S5500, V5050 families.
• Model name to match: B31N1842 (or compatible part 0B200-03440000).
• Voltage: 11.52V and Capacity: ~42Wh / 3653mAh must match original specs.
• Open the back cover to visually verify shape and connector alignment before purchase.

What performance and safety features does this replacement offer?

The RHKRKQN battery uses Grade A lithium‑ion cells for consistent capacity and lower self‑discharge compared with aged cells. It is produced under quality controls and carries CE/UL safety certifications to reduce electrical and thermal risk when used correctly.

• Rated capacity: 42Wh / 3653mAh for typical all‑day light use restoration.
• Voltage and pin layout match original ASUS B31N1842 to ensure proper charging behavior.
• Manufactured with CE, UL tested components for compliance with common safety standards.
• Ships with installation screwdrivers and an instruction sheet to assist safe replacement.

How do I replace the battery safely and what should I watch for?

Power off your laptop, remove the charging cable, and ground yourself to prevent static discharge before opening the back panel. Follow the included instructions, keep screws organized, and avoid forcing connectors—if in doubt, seek professional installation.

• Power down and remove all cables before disassembly.
• Use the supplied screwdrivers and follow the instruction sheet step‑by‑step.
• Verify the replacement battery model and connector orientation before powering on.
• Contact seller support within the return window if the battery doesn’t fit or function.

Who is this for? This replacement pack is intended for ASUS VivoBook owners and repair technicians who need a reliable, compatible battery swap to restore laptop runtime. It suits users of X513, X531, K531, S531, V531, S5500, and V5050 series machines whose original B31N1842 battery has worn out or become unreliable. If you prioritize matching specs, basic tools included for a DIY swap, and Grade A cell quality with CE/UL compliance, this RHKRKQN battery is built as a cost‑effective alternative to OEM replacement packs. Before ordering, always verify your existing battery model and connector layout to avoid fitment issues.