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Batteries > Lenovo IBM  > Laptop Battery for Lenovo IBM FRU 42T4678

New Lenovo IBM FRU 42T4678 Laptop Battery

Lenovo IBM FRU 42T4678 Laptop Battery 6 Cell 10.8V 4800mAh 52Wh
New, 3 years warranty!
Deal of The Day 30% Off: £28.28
** Location UK, Fast Shipping! Free delivery for orders overy £100. All orders placed before 4pm despatch same day. Please see all delivery options.
Super Extended Battery Life, Newer type of rechargable, giving best performance for a rechargable.
Lithium-ion (Li-ion)
DC 10.8 V (Compatible With 11.1 V)
4800 mAh / 6 Cell / 52 Wh
331 g
L224.20 x W65.00 x H20.35
In Stock
3 years warranty!

The replacement Lenovo IBM FRU 42T4678 Laptop Battery is made out of high quality Japanese cells with modern Li-ion technology safety to meets or exceed the original specification. All our laptop batteries have passed international certificates CE, FCC, ROHS and are secured against short-circuits and safety hazards. Brand new, never refurbished, 100% compatible, No memory effect, and the FRU 42T4678 battery will help you power up your laptop in the office, business trips or vacations. The package is sealed for protection to prevent humidity and contamination, comes with 3 years warranty!

Note: Please ensure the product(s) that you are going to buy fits the brand, model and part number of your device. Please use "Ctrl + F" for fast search.

List of Compatible Part Numbers:
41U3196, 41U3197, 41U3198, 42T4547, 42T4652, 42T5225, 42T5226, 42T5227, 42T5229, 42T5262, 42T5263, 42T5264, ASM 42T5265, FRU 42T4548, FRU 42T4677, FRU 42T4678, FRU 42T4743, FRU 42T4745, FRU 42T4771, FRU 42T5262, FRU 42T5264

List of Compatible Models:
  Lenovo IBM ThinkPad R400 Series
    ThinkPad R400 7443, ThinkPad R400,

  Lenovo IBM ThinkPad R61 Series(14.1" widescreen)
    ThinkPad R61 7732, ThinkPad R61 7733, ThinkPad R61 7734,
    ThinkPad R61 7735, ThinkPad R61 7736, ThinkPad R61 7737,
    ThinkPad R61 7738, ThinkPad R61 7742, ThinkPad R61 7743,
    ThinkPad R61 7744, ThinkPad R61 7751, ThinkPad R61 7753,
    ThinkPad R61 7754, ThinkPad R61 7755,

  Lenovo IBM ThinkPad R61i Series(14.1" widescreen)
    ThinkPad R61i 7732, ThinkPad R61i 7742,

  Lenovo IBM ThinkPad T400 Series
    ThinkPad T400, ThinkPad T400 2764, ThinkPad T400 6473,
    ThinkPad T400 7417,

  Lenovo IBM ThinkPad T61 Series(14.1" widescreen)
    ThinkPad T61 1959, ThinkPad T61 6377, ThinkPad T61 6378,
    ThinkPad T61 6379, ThinkPad T61 6480, ThinkPad T61 6481,
    ThinkPad T61 7658, ThinkPad T61 7659, ThinkPad T61 7660,
    ThinkPad T61 7661, ThinkPad T61 7662, ThinkPad T61 7663,
    ThinkPad T61 7664, ThinkPad T61 7665,

  Lenovo IBM ThinkPad T61p Series(14.1" widescreen)
    ThinkPad T61p (14.1" widescreen),

  Lenovo IBM ThinkPad T61u Series(14.1" widescreen)
    ThinkPad T61u (14.1" widescreen),

Our Commitment:
PowerAdvent's policy is to provide our customers with superior customer service. All of our products carry a 100% satisfaction guarantee. If, for any reason, you're not completely satisfied with your purchase, return the product(s) to us within 30 days. Furthermore, most of our products carry a 3 years warranty against defects in material and workmanship. In the event you are not satisfied with a product, we will provide you with a Return Merchandise Authorization (RMA) number and complete instructions on how to ship the product(s) back to us. Click here for more information on returns.

    User Tips:
  1. 1. How to find the correct laptop battery?
    Batteries from major manufacturers use standardized part numbers. The following are the sample part numbers from the major brands:
    Acer AS10D71
    HP, Compaq 593553-001
    Sony VGP-BPS22
    Dell 312-1234
    IBM, Lenovo 40Y7001, 92P1165
    Toshiba PA3817U-1BRS, PA5024U-1BRS

  2. 2. How to keep my laptop battery healthy?
    Laptop battery packs should be charged for 12 hours when you first get them. Laptop batteries are completely discharged at the time of purchase, and need a full charge before their first use.

  3. 3. How to Extend the Life of Your Laptop Battery
    According to statistics, a typical laptop battery last long for 500 charges / discharges cycles. If you want to your laptop battery last longer than this number, remove the battery whenever your laptop is plugged into an outlet. If you leave it in, the AC power could cause the battery to overheat and overcharge. Also, keep in mind that keep your laptop and battery in cool, dry, and well - ventilated locations. Hot environment might minimize the battery lifetime.

  4. 4. How to deal with my battery when it is not used?
    Don't leave your laptop battery inactive for extended periods of time. Even if you use AC power most of time, use the battery periodically to keep it in good condition. Unplug your AC adapter when the computer is not in use to prevent overcharging.

  5. 5. What should I do for battery storage for a long period of time?
    Don't store your battery for long periods plugged into or attached to any power source, including AC adapters and laptop security carts plugged into an outlet; Charge batteries before storing. The recommended charging time should not exceed 1 hour.

  6. 6. How to maximize my laptop battery performance?
    To get maximum performance from the battery, fully optimize the notebooks power management features prior to use. The power management system conserves battery power by setting the processor to run at a slower speed, dimming the screen, spinning down the hard drive when it's not in use and causing the machine to go into sleep mode when inactive.
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Customer opinions
  • Charles Baxter on 2024-07-12

    Seems to be ok
  • Julie Mann on 2024-07-09

    Meet expectations
  • Sharon Burns on 2024-07-05

    Works perfectly and as expected!
  • Ravi Magan on 2024-07-01

    Totally awesome! Came right away, and continues to work fine. Thank you.
  • Rana Shameem on 2024-06-25

    Worked! Was used on a daily use laptop for 6 months and still holds charge well. I would buy from this company again for a backup battery.
  • Matthew Cleve on 2024-06-20

    Quality products at the best prices!
  • Graham Holt on 2024-06-17

    So far so good. I'm getting anywhere from 2.5 to 3 hours or so of life out of this batter on a full charge and that is about what I would expect.
  • Michael Green on 2024-06-15

    I followed the instructions exactly as to fully charging the battery pack and allowing it to discharge down to 7% for the first 3 times before actually using the computer. I think this stuff is very important as the battery would discharge quickly down to 7% which had me worried about the battery life. However, after performing 3 consecutive discharges to 7%, the battery life is a little over 4 hours which I am very pleased with!!!
  • Thyago Goes on 2024-06-11

    Arrived early and was 91% charged. Snapped perfectly into my 1545. Followed the instructions about cycling from full charge before use and then recharging when discharged down to 7%. Works like a champ.
  • Peter Carr on 2024-06-07

    Good value on a reliable battery!
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