Lenovo 42T4702 Battery for ThinkPad T420
Original price was: $117.99.$58.99Current price is: $58.99.
New replacement battery for Lenovo laptops using the 42T4702 part number.
- 🔋 Voltage: 10.8V · Capacity: 47.5Wh / 4400mAh · Type: 6-Cell Li-ion
- 🔄 Replaces: 42T4702, 42T4703, 42T4704
- 💻 Fits: Lenovo ThinkPad T420, ThinkPad T 420I
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A new Lenovo 42T4702 battery replacement for ThinkPad T420 laptops, delivering the correct voltage and watt-hour rating. This 42T4702 replacement battery is designed to work with ThinkPad T420, ThinkPad T 420I and other compatible laptop model families. The battery serves as a direct replacement for multiple part numbers including 42T4703, 42T4704, 42T4706, 42T4708, 42T4709, 42T4731, 42T4732, 42T4733, and 42T4734. Users can verify compatibility by checking their original battery label against these cross-reference numbers to ensure proper fitment and performance in their ThinkPad system.
The 42T4702 operates at 10.8 volts with a 47.5 watt-hour capacity rating and 4400mAh storage capacity. This direct-fit replacement features 6-cell lithium-ion construction using Samsung cells for reliable power delivery. The battery maintains the same physical dimensions and electrical specifications as the original component, ensuring seamless integration with your ThinkPad charging system and power management features.
Typical runtime with the 42T4702 ranges from 4 to 6 hours depending on system configuration and usage patterns. It is an ideal replacement when your original battery no longer holds a full charge. This replacement battery restores mobility to your ThinkPad workstation, allowing you to work away from power outlets with confidence in consistent performance throughout your computing sessions.
Technical Specifications
| Voltage | 10.8V |
| Capacity | 47.5Wh / 4400mAh |
| Cells | 6-cell Li-ion |
| Part Number | 42T4702 |
| Brand | Lenovo Compatible |
Key Features
- High-capacity 47.5Wh 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 | Lenovo Compatible |
| Capacity | 47.5Wh / 4400mAh |
| Part Number | 42T4702 |
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🚚 What is the cost of shipping?
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⏱️ How long does shipping take?
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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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You can also check your order status anytime on our Track Your Order page.
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If your tracking number shows “Delivered” but you haven’t received your package:
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- Wait 24 hours — USPS sometimes scans items as delivered before arrival.
If your package is still missing after these steps:
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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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