Picking the right replacement comes down to matching your device and your needs. Look for these items when comparing listings:

• Model compatibility: confirm the battery is listed for your exact phone model.
• Capacity and voltage: higher mAh can mean longer runtime, but voltage must match your device.
• Product details: check whether installation needs special tools or spot welding.
• Seller info: read the return policy and warranty details.

Walmart carries batteries and repair kits so you can compare options and choose based on compatibility and support.

Contents vary by kit, but common items often included are:

• Precision screwdrivers (Phillips, pentalobe or tri-point depending on the model)
• Pry tools and plastic picks to open the case
• Suction cup for lifting screens
• Adhesive strips or replacement adhesive
• An instruction guide or QR link to online instructions

Some batteries are sold as \"core\" units or require spot welding—those kits may omit specialized tools. Always check the product description before buying, and consider a professional installation if needed.

If you decide to install a battery yourself, safety and preparation matter. Consider these points:

• Back up data: save your device data before you begin.
• Work area: choose a clean, static-free surface and use the tools the kit provides.
• Handle with care: avoid puncturing or bending the battery and keep it away from heat sources.
• Follow instructions: use the supplied guide and manufacturer-listed steps; some replacements need professional spot welding.

If you're unsure, Walmart offers replacement parts and repair kits, and you can explore professional repair options through authorized service providers.

Battery health percentage is an estimate of your battery’s current maximum charge capacity relative to its original capacity. Here’s what to know:

• Interpretation: a lower percentage means the battery holds less charge than when new, which can reduce runtime.
• Factors: age, charge cycles, and usage patterns affect capacity over time.
• Performance cues: degraded battery can cause shorter usage time or unexpected shutdowns, but percentage alone doesn't tell the full story.

If runtime has dropped or performance is affected, a replacement battery can often improve usability; check product compatibility and return policies before purchasing.

If a replacement battery doesn't work as expected, here are steps you can take:

1. Check the seller’s return and warranty information listed on the product page.
2. Use Walmart’s return process within the posted return window if the item is eligible.
3. Contact the seller or Walmart customer service for troubleshooting and next steps.
4. Consider professional diagnostic or installation services if the issue may be related to installation.

Also remember to recycle the old battery safely at a designated e-waste or battery drop-off location.