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Compatible Laptop Battery Replaces Lenovo 42T4751

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Technical Specs Compatibility Shipping Rates Tech Support    
42T4751 Specifications
 Our ValueOEM Value
Capacity 4400 mAh / 48 Wh
Cellcount 6 cell
Color Black
Manufacturer Premium PowerLenovo
Package height 8
Package length 8
Package width 8
Product weight 0.9 lbs
Technology Li-IonLi-ion
UPC 842740027844
Volts 10.8 V
UPC 842740027844

Compatible Laptop Battery Replaces Lenovo 42T4751

This new replacement laptop battery from eReplacements is 100% compatible with your Lenovo and is Black in color and is rated at 4400 mAh / 48 Wh and 10.8 V. eReplacements laptop batteries all come with a 1 year warranty and will meet or exceed the original Lenovo laptop battery specifications because they are manufactured for high performance in our ISO 9000 factories using the best quality cells and most up to date safety and engineering control standards:
  • High/low temperature shut off protection
  • Thermal runaway protection
  • Overcharge shut off protection
  • Over discharge shut off protection
  • Cell imbalance shut off protection
  • Fire resistant plastic casing
  • Manufactured using the most up to date TI BQ20Z chip set

Click here for a current SDS sheet on this Laptop Battery

Thousands of resellers, dealers and service companies over the years have trusted eReplacements to provide their customers with quality replacement laptop batteries.
Compatible Models
Lenovo ThinkPad Edge 0578-47BLenovo ThinkPad Edge E520Lenovo ThinkPad Edge 14 0578-7UJ
Lenovo ThinkPad Edge 14 0578-7VJLenovo ThinkPad Edge 14 0578-7WJLenovo ThinkPad Edge 14 0578-7XJ
Lenovo ThinkPad Edge 14 0578-7YJLenovo ThinkPad Edge 15 301K7JLenovo ThinkPad Edge E420 1141-CTO
Lenovo ThinkPad Edge E420 1167-CTOLenovo ThinkPad Edge E420 1198-CTOLenovo ThinkPad Edge E425 1141-CTO
Lenovo ThinkPad Edge E425 1167-CTOLenovo ThinkPad Edge E425 1198-CTOLenovo Thinkpad L410 2842-CTO
Lenovo Thinkpad L410 2847-CTOLenovo Thinkpad L410 2873-CTOLenovo Thinkpad L410 2874-CTO
Lenovo Thinkpad L410 2875-CTOLenovo Thinkpad L410 2931-CTOLenovo Thinkpad L420 5015-36x
Lenovo Thinkpad L420 5015-37xLenovo Thinkpad L420 5015-3DxLenovo Thinkpad L420 5015-3Ex
Lenovo Thinkpad L420 5015-CTOLenovo Thinkpad L420 5016-4FxLenovo Thinkpad L420 5016-4Gx
Lenovo Thinkpad L420 5016-4HxLenovo Thinkpad L420 5016-4JxLenovo Thinkpad L420 5016-5Lx
Lenovo Thinkpad L420 5016-5MxLenovo Thinkpad L420 5016-65xLenovo Thinkpad L420 5016-66x
Lenovo Thinkpad L420 5016-67xLenovo Thinkpad L420 5016-CTOLenovo Thinkpad L420 5017-4Px
Lenovo Thinkpad L420 5017-4QxLenovo Thinkpad L420 5017-4RxLenovo Thinkpad L420 5017-4Sx
Lenovo Thinkpad L420 5017-4TxLenovo Thinkpad L420 5017-4UxLenovo Thinkpad L420 5017-4Vx
Lenovo Thinkpad L420 5017-4WxLenovo Thinkpad L420 5017-4XxLenovo Thinkpad L420 5017-CTO
Lenovo Thinkpad L420 5019-CTOLenovo Thinkpad L510 2842-CTOLenovo Thinkpad L510 2847-CTO
Lenovo Thinkpad L510 2873-CTOLenovo Thinkpad L510 2874-CTOLenovo Thinkpad L510 2875-CTO
Lenovo Thinkpad L510 2931-CTOLenovo Thinkpad L520 5015-36xLenovo Thinkpad L520 5015-37x
Lenovo Thinkpad L520 5015-3DxLenovo Thinkpad L520 5015-3ExLenovo Thinkpad L520 5015-CTO
Lenovo Thinkpad L520 5016-4FxLenovo Thinkpad L520 5016-4GxLenovo Thinkpad L520 5016-4Hx
Lenovo Thinkpad L520 5016-4JxLenovo Thinkpad L520 5016-5LxLenovo Thinkpad L520 5016-5Mx
Lenovo Thinkpad L520 5016-65xLenovo Thinkpad L520 5016-66xLenovo Thinkpad L520 5016-67x
Lenovo Thinkpad L520 5016-CTOLenovo Thinkpad L520 5017-4PxLenovo Thinkpad L520 5017-4Qx
Lenovo Thinkpad L520 5017-4RxLenovo Thinkpad L520 5017-4SxLenovo Thinkpad L520 5017-4Tx
Lenovo Thinkpad L520 5017-4UxLenovo Thinkpad L520 5017-4VxLenovo Thinkpad L520 5017-4Wx
Lenovo Thinkpad L520 5017-4XxLenovo Thinkpad L520 5017-CTOLenovo Thinkpad L520 5019-CTO
Lenovo Thinkpad L520 7287-4CxLenovo Thinkpad L520 7287-4ExLenovo ThinkPad SL410 2842
Lenovo ThinkPad SL410 2842-CTOLenovo ThinkPad SL410 2847-CTOLenovo ThinkPad SL410 2873-CTO
Lenovo ThinkPad SL410 2874Lenovo ThinkPad SL410 2874-CTOLenovo ThinkPad SL410 2875-CTO
Lenovo ThinkPad SL410 2931-CTOLenovo ThinkPad SL410k 2842Lenovo ThinkPad SL510 2842-CTO
Lenovo ThinkPad SL510 2847Lenovo ThinkPad SL510 2847-CTOLenovo ThinkPad SL510 2847-RE4
Lenovo ThinkPad SL510 2873-CTOLenovo ThinkPad SL510 2874-CTOLenovo ThinkPad SL510 2875
Lenovo ThinkPad SL510 2875-CTOLenovo ThinkPad SL510 2931-CTOLenovo ThinkPad T520 T520
Lenovo ThinkPad W510 4389
Click here to see more compatible models!
Compatible Part Numbers
Lenovo 42T4235Lenovo 42T4702Lenovo 42T4703
Lenovo 42T4731Lenovo 42T4733Lenovo 42T4737
Lenovo 42T4751Lenovo 42T4751-ERLenovo 42T4752
Lenovo 42T4753Lenovo 42T4755Lenovo 42T4756
Lenovo 42T4791Lenovo 42T4793Lenovo 42T4795
Lenovo 42T4796Lenovo 42T4797Lenovo 42T4817
Lenovo 42T4819Lenovo 51J0499Lenovo 57Y4185
Lenovo 57Y4185-ERLenovo 57Y4185-TM

eReplacements Shipping Rates


We offer several ways to ship your product. Orders over $500 ship free via FedEx Ground or Freight. Your exact shipping rate will be calculated in the cart and is determined by weight and zone but following is a guideline for approximate shipping rates:

  • USPS: $2.00 - $5.00 (under 1 lb); $7.00 (under 3 lbs)
  • FedEx Ground: $10.00 (under 15 lbs)
  • FedEx 2Day: $15.00 (under 10 lbs)
  • FedEx Standard Overnight (4:00 p.m.): $25.00 (under 10 lbs)
  • FedEx Priority Overnight (10:00 a.m.): $35.00 (under 10 lbs)

Items shipped via FedEx Ground will arrive to your city from our Dallas warehouse according to the time in transit map below: