42T4951 Battery for Lenovo ThinkPad Edge E120 E130 E320 E330 X121e | 11.1V 63Wh 5600mAh 84+ – HTJ
- Model Numbers: 42T4951 (ThinkPad 84+) / 42T4947 (ThinkPad 84)
- Battery Type: Li-ion (High-Density Grade A+ Cells)
- Voltage: 11.1V (Fully compatible with 10.8V)
- Capacity: 5600mAh / 63Wh (Extended High-Capacity 6-Cell)
- Cells: 6-Cell
- Condition: 100% Brand New from Factory
- Life Cycle: 600 – 1000 recharge cycles
- Multiple Protection: Over Current, Over Voltage, Over Charge & Discharge, Overheat, Short Circuit, ESD, EMI
- Color: Black
- Certifications: UL2054, CE, FCC, RoHS, UN38.3, MSDS, IEC62133
- OEM/ODM: Yes(Accepted)
- Warranty: 18 Months After Sales, 24/7 Email Support.
- Product Dimensions: 8.11 x 1.65 x 0.79 inches
- Item Weight: 11.1 pounds
L12S4E01 42T4951 Battery for Lenovo ThinkPad Edge E120 E130 E320 E330 X121e | 11.1V 63Wh 5600mAh 84+
Detailed Product Specifications and Features:
Core Technical Parameters:
| Property | Specification |
|---|---|
| Model Numbers | 42T4951 (ThinkPad 84+) / 42T4947 (ThinkPad 84) |
| Battery Type | Li-ion (High-Density Grade A+ Cells) |
| Voltage | 11.1V (Fully compatible with 10.8V) |
| Capacity | 5600mAh / 63Wh (Extended High-Capacity 6-Cell) |
| Cells | 6-Cell |
| Condition | 100% Brand New from Factory |
| Life Cycle | 600 - 1000 recharge cycles |
| Multiple Protection | Over Current, Over Voltage, Over Charge & Discharge, Overheat, Short Circuit, ESD, EMI |
| Color | Black |
| Certifications | UL2054, CE, FCC, RoHS, UN38.3, MSDS, IEC62133 |
| OEM/ODM | Yes(Accepted) |
| Warranty | 18 Months After Sales, 24/7 Email Support. |
| Product Dimensions | 8.11 x 1.65 x 0.79 inches |
| Item Weight | 11.1 pounds |
Technical Note:
Design Note: The 42T4951 (ThinkPad 84+) is a high-capacity external rear battery pack.
Physical Note: As an extended 6-cell 63Wh version, this battery is physically deeper than the standard 3-cell battery. It will protrude slightly from the rear of the laptop, providing a natural grip for carrying the device and a slight ergonomic lift that improves cooling performance for these compact ultra-portables.
Product Features:
- Battery Newest Premium Grade Cells
- Best Circuit Board
- Multiple command chip control, keep the battery stable charge and discharge;
- Over-charger protection and discharger protection, short-circuit protection, ensure fast charges and low power consumption
- Easy & Quick Installation
- Our battery is 100% compatible with the original battery and meets
- CE/FCC/ROHS/UL-certified standards. It is 100% new from the manufacturer and can support up to 1000 recharge cycles over the life of the battery
- Power Interface: Gold-plated connector points to ensure current transport excellently and serve stably.
- Enclosure: The enclosure is made of ABS + PC high-quality material, which has a high-temperature-resistant function to protect your laptop from overheating
- Battery Buckle: The battery buckle is closely connected to the laptop, and the metal interface is stably powered
42T4951 (ThinkPad 84+) / 42T4947 (ThinkPad 84) Battery Compatibility Laptop Model List:
| Series | Specific Laptop Models & Machine Types (MT / MTM) |
|---|---|
| ThinkPad Edge Series | Edge E120 / E125: (Type 3043, 3044, 3035) Edge E130 / E135: (Type 3358, 3359) Edge E145: (Type 20BC) Edge E320 / E325: (Type 1297, 1298) Edge E330 / E335: (Type 3354, 3355) |
| ThinkPad X Series | ThinkPad X121e: (Type 3045, 3048, 3049) ThinkPad X130e: (Type 0622, 0627, 2338, 2339) ThinkPad X131e: (Type 3367, 3368, 3369, 3371, 3372) |
| ThinkPad Older Gen | ThinkPad X100e / X120e: (Backward Compatible with specific firmware) |
| Specific Suffixes | 3358-1K5, 3043-CTO, 3367-76U, 0622-2RU, 1297-CTO |
42T4951 (ThinkPad 84+) / 42T4947 (ThinkPad 84) Battery Compatible P/N (Part Numbers) List:
FRU (Field Replaceable Unit) Numbers:
-
- 42T4951 (6-Cell 63Wh 84+)
- 42T4947, 42T4948 (3-Cell 32Wh 84)
- 42T4943, 42T4945, 42T4949, 42T4950
- 42T4952, 42T4957, 42T4958, 42T4959, 42T4960, 42T4961, 42T4962
ASM (Assembly) Numbers:
-
- 42T4944, 42T4946
- SB10K97568, SB10K97569
- 0A36292, 0A36290
Marketing / Option P/N:
-
- ThinkPad Battery 84+ (0A36292)
- ThinkPad Battery 84 (0A36290)
Why Choose HTJ 42T4951 63Wh Battery?
- High-Capacity 63Wh Energy Density:
Our 63Wh version offers nearly double the runtime of the original 32Wh standard packs. It is the perfect upgrade for students and travelers using the E130 or X131e who need a full day of unplugged performance. - Precision Firmware Sync:
ThinkPad Edge and X-series laptops are sensitive to battery authentication. HTJ batteries use the latest communication chips to ensure the “ThinkPad Battery 84+” is correctly recognized by the BIOS, avoiding the “Battery not charging” error. - Grade A+ Cells for Longevity:
We utilize high-consistency Grade A+ lithium-ion cells that maintain over 80% of their original capacity after 500+ cycles. This ensures your ultra-portable remains portable for years to come. - 18-Month Factory-Direct Warranty:
As the manufacturer, HTJ provides an 18-month warranty. Every battery is subjected to 48-hour aging and structural stress tests to ensure a perfect fit in your Lenovo chassis.
How to Install Your New 42T4951 Battery?
Replacing the external 42T4951 (84+) is a tool-free process using the classic rear-sliding latch system.
⚠️ Crucial Safety Preparation:
- Shutdown: Power off your laptop and disconnect the charger.
- Surface: Flip the laptop onto a soft, clean cloth to prevent scratching the lid.
42T4951 Battery Step-by-Step Installation Guide:
- Locate the Dual Latches: Find the two sliding latches on the rear underside of the laptop.
- Unlock the Manual Latch: Slide the right-side latch to the “Unlocked” position.
- Release the Spring Latch: Slide and hold the left-side spring-loaded release latch.
- Remove the Old Battery: While holding the release latch, slide the old battery straight out towards the rear.
- Insert the HTJ Battery: Align the guide rails of the new HTJ 42T4951 and slide it in until it clicks firmly.
- Secure the Lock: Important: Slide the manual lock latch back to the “Locked” position.
- Verification: Power on the device; the battery LED should indicate charging status.
💡 Pro Tip:
For these compact models, keeping the air vents clear is vital. Because this 84+ battery provides a slight lift, it naturally improves airflow. Ensure your cooling fans are dust-free to maximize the efficiency of your new high-capacity cells.
FAQ (Frequently Asked Questions)
Q: Will this 63Wh battery stick out of my Edge E130? A: Yes. The 6-cell “84+” version protrudes slightly from the back compared to the flush 3-cell version. This is by design to accommodate the extra power cells.
Q: Is it compatible with the ThinkPad X1 Carbon? A: No. X1 Carbon models use internal, flat-ribbon batteries. This 42T4951 is an external battery for the Edge and X100/121/131e series.
Q: Can I use this on a ThinkPad X100e? A: Yes, it is physically compatible. However, please ensure your BIOS is updated to the latest version to ensure full recognition of the 6-cell chemistry.
Laptop Maintenance Tips:
- New battery: For using a new battery, you’d better try a few cycles of discharging to 5%. then charging up to 95%. So that it can be activated completely
- Overuse: Do not always run a battery to 0%, as this would shorten its usage life.
- Charging sequence: When charging, first install the battery, then turn on the power. When fully charged, first cut off the power, then pull the power plug.
- Long-term storage: Please store the unused battery fully charged. (Charge it once a month.) Do not store at low power to prevent reducing the lifespan of a battery
- Charger: Do not replace the laptop adapter casually. If the original adapter cannot be applied due to malfunction or damage, please replace the models so as not to reduce the service life of the battery due to incompatibility.
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