Toshiba L645-S4102 Battery for Satellite L645
Original price was: $113.99.$56.99Current price is: $56.99.
Direct-fit Toshiba L645-S4102 replacement battery for select laptop models.
- 🔋 Voltage: 10.8V · Capacity: 56.2Wh / 5200mAh · Type: 6-Cell Li-ion
- 🔄 Replaces: L645-S4102, PA3819U-1BRS, PA3817U-1BRS
- 💻 Fits: Toshiba Satellite L645 Series, Satellite L 645D, Satellite L 645-S
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Replace your original Toshiba laptop battery with a new L645-S4102, built as a direct replacement for Satellite L645 Series models. This L645-S4102 replacement battery is fully compatible with Satellite L645 Series, Satellite L645D, and Satellite L645-S laptop families. The battery works seamlessly with multiple part numbers including PA3819U-1BRS, PA3817U-1BRS, and C655 configurations. Whether your system requires A665 or L645D compatibility, this L645-S4102 battery delivers reliable power restoration for your portable computing needs.
This direct-fit L645-S4102 battery operates at the correct voltage of 10.8V and provides 56.2Wh capacity through premium lithium-ion cells. The 6-cell configuration with 5200mAh capacity ensures equivalent performance to your original battery. High-quality cells deliver consistent power output while maintaining proper electrical specifications for safe laptop operation.
Typical runtime with this L645-S4102 replacement ranges from 5 to 7 hours depending on your usage patterns and system configuration. Choose this replacement battery to extend the working life of your laptop. Restore portable productivity and eliminate dependence on wall outlets during travel or mobile work sessions.
Technical Specifications
| Voltage | 10.8V |
| Capacity | 56.2Wh / 5200mAh |
| Cells | 6-cell Li-ion |
| Part Number | L645-S4102 |
| Brand | Toshiba Compatible |
Key Features
- High-capacity 56.2Wh 6-cell design for extended runtime
- Direct-fit replacement matching original voltage and capacity
- Premium lithium-ion cells for consistent performance
Compatible Part Numbers
Compatible Laptop Models
Compatible with the models, series, and devices listed above; however, this is
not a complete compatibility list, and additional unlisted models may also be
supported. If your device is not shown, please email us at cs@usabatteries.com
for compatibility confirmation.
| Voltage | 10.8V |
|---|---|
| Brand | Toshiba Compatible |
| Capacity | 56.2Wh / 5200mAh |
| Part Number | L645-S4102 |
At USA Batteries, we are committed to providing fast, free, and reliable shipping on every order. Below, you’ll find detailed information about our shipping process, delivery timelines, carriers, and what to do if your order experiences an issue.
🚚 What is the cost of shipping?
Shipping is completely free on all orders — no minimum purchase requirements, no hidden fees, and no surprise charges at checkout. We believe in transparent pricing so you can shop with confidence.
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Most orders are shipped via USPS (United States Postal Service), which provides fast and affordable nationwide delivery. For large, heavy, or bulk orders, we may use FedEx or UPS to ensure safe and efficient handling.
Please Note: Some oversized products or wholesale shipments may require alternative carriers based on size, weight, or destination.
⏱️ How long does shipping take?
- Standard USPS Delivery: Most items arrive within 3–5 business days after leaving our warehouse.
- Order Processing: Orders are typically processed and shipped within 24 business hours of purchase.
- Delays: Shipping times may be longer during weekends, public holidays, or severe weather conditions.
If your order is time-sensitive, please contact us before purchasing, and we’ll do our best to assist.
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Currently, we do not offer paid expedited shipping options. However, many of our USPS shipments use Priority Mail, which generally arrives within 2–3 business days for most U.S. locations.
If you need a faster delivery option, reach out to us at cs@usabatteries.com, and we’ll check if a special arrangement can be made.
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At this time, we only ship within the United States. We do not offer international delivery options.
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If your order requires FedEx or UPS (usually for larger packages), we may contact you for a physical street address.
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You will receive an email with a tracking number as soon as your order ships.
You can also check your order status anytime on our Track Your Order page.
📦 Lost or Missing Packages
If your tracking number shows “Delivered” but you haven’t received your package:
- Check around your home — porch, mailbox, garage, or any safe drop-off spots.
- Ask neighbors or household members in case someone accepted the package.
- Wait 24 hours — USPS sometimes scans items as delivered before arrival.
If your package is still missing after these steps:
- Contact your local USPS office. USPS can provide GPS delivery confirmation to determine where your package was left.
- Contact us at cs@usabatteries.com or via Live Chat. We will assist you in opening an investigation and help retrieve GPS scan data if necessary.
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✅ Our Commitment
Your satisfaction is our priority. If you experience any shipping issues, we will work closely with USPS or the relevant carrier to resolve the situation promptly and ensure your order reaches you safely.
The USABatteries.com Guarantee
Your satisfaction is our priority. Every battery from USABatteries.com is rigorously tested and backed by a comprehensive 1-Year Warranty. We are so confident in our quality that we offer a Risk-Free 30-Day Money-Back Guarantee: if you aren't completely happy within the first month, we will cover the return shipping costs ourselves. Quality power, zero risk.
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