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Highest Capacity Battery !
7800 mAh - 85 wHr

The longest lasting battery for the IBM ThinkPad - R52 Series. Guaranteed for 2 years with a 45 day money back guarantee.

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The Part Numbers List covers the majority of part numbers. If your part number does not show up it, this battery still WILL fit your corresponding Model.
| R50, R50 1831, R50 1832, R50 1833, R50 1836, R50 1840, R50 1841, R50 2883, R50 2887, R50 2888, R50 2889, R50 2894, R50 2895, R50-1829-1829, R50-1830-1830, R50E, R50E-1834-1834, R50E-1842-1842, R50E-1844-1844, R50E-1845-1845, R50E-1846-1846, R50E-1847-1847, R50E-1848-1848, R50E-1849-1849, R50E-1850-1850, R50E-1858-1858, R50E-1859-1859, R50E-1860-1860, R50E-1862-1862, R50E-1863-1863, R50E-1870-1870, R50P, R50P 1829, R50P 1830, R50P 1831, R50P 1832, R50P 1833, R50P 1840, R50P 1841, R50P 2883, R50P 2887, R50P 2888, R50P 2889, R50P 2894, R50P 2895, R50P1836, R51, R51 1829, R51 1832, R51 1833, R51 1840, R51 1841, R51 2894, R51 2895, R51-1830-1830, R51-1831-1831, R51-1836-1836, R51-2883-2883, R51-2887-2887, R51-2888-2888, R51-2889-2889, R51e, R51E 1844, R51E-1834-1834, R51E-1842-1842, R51E-1845-1845, R51E-1846-1846, R51E-1847-1847, R51E-1848-1848, R51E-1849-1849, R51E-1850-1850, R51E-1858-1858, R51E-1859-1859, R51E-1860-1860, R51E-1861-1861, R51E-1862-1862, R51E-1863-1863, R51E-1870-1870, R52, R52 1843, R52 1844, R52 1845, R52 1850, R52 1862, R52 1863, R52 1870, R52 SERIES, R52-1846-1846, R52-1847-1847, R52-1848-1848, R52-1849-1849, R52-1858-1858, R52-1859-1859, R52-1860-1860, R52-1861-1861, T40, T40-2373-2373, T40-2374-2374, T40P, T41, T41P, T42, T42P, T43, T43 1871, T43 2668, T43-1876-1876, T43P, T43P-2668-2668, |
This list is not all inclusive but covers the majority of part numbers. If your part number does not show up it, the battery still will fit your corresponding Model. |
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Batteries in Stock and we offer 2 types of batteries
(the higher the wHr the longer lasting the battery)
Click on Prices or Scroll Down
85 wHr at $98.50, 48 wHr at $89.00,
Batteries on Sale
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How long will this battery run/last on a full charge?
- A ‘realistic’ average run-time for a battery is 2 to 5 hours all depending on your laptop settings and the type of applications you are running. Make sure to have your laptop settings on "laptop" this will save your battery life while running on the battery.
- What is wHr and mAh?
- wHr refers to Watt Hours. The higher the wHr the higher capacity the battery can hold. The wHr is a calculation of voltage and mAh. We offer the highest, safest capacities for laptop batteries available.
- mAh refers to Milli Amp Hours. This is basically the capacity holding of the battery. Higher mAh will hold more "juice".
- Will this High Capacity Battery work with my Laptop?
- Yes. This battery will fit and work with your laptop. Your laptop has a voltage regulator built in. Voltage is the only thing that matters with the battery in reference to the laptop. The mAh is only the ability to hold a capacity. Your laptop will regulate the voltage so if your old battery was a lower Voltage battery that will not matter. This battery will work in your laptop and give you more battery life.
- What is the life of a battery under normal use?
- The life of a battery under normal use is around 500 cycles. This should last at least 2 years for the average user. If your battery is not lasting at least 30 minutes you need a new battery.
- How much is the cost of Shipping and how will it ship?
- Shipping is currently FREE via United States Postal Service (USPS) 2-3 day delivery service. Anywhere in the US and the US provinces. For international orders please see our company policies
- Do you manufacture your own batteries?
- Yes, we manufacture our own batteries. Our factory is located in China. Almost all batteries on the market are manufactured in China including all the major brand names like Dell and HP.
- Are these batteries new or refurbished?
- All of our batteries are brand new. We never sell refurbished or used batteries.
- What if my part number is not listed?
- This corresponding part number list is not complete but covers the majority of part numbers. If your corresponding part number is not on this list, the battery will fit with your corresponding laptop model.
- Where are you located?
- In Southern California
- How long have you been in Business?
- We’ve been in business since 2000 and are members of the Better Business Bureau.
- Do you offer overnight delivery?
- YES, we offer 1-2 Day USPS Express Mail and UPS Next Day Air Saver for additional shipping fees. (we only ship Monday - Friday last shipment goes out 12:00 pm Pacific)
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