Laptop BatteriesHP Laptop Batteries › F2306k Battery

Replacement for HP F2306k Laptop Battery

HP F2306k Laptop Battery - Brand New, Three Years Warranty. HP F2306k laptop batteries that are manufactured to meet or exceed the specifications of the original brand manufacturer. Free Shipping, and Secure Online Ordering Guaranteed!

If you have any questions, please feel free to contact us, we will do our best to help you. Contact Us


Replacement for HP F2306k Laptop Battery
Click to Enlarge

Original Price: US $ 113.98
Special price: US $ 51.59
Brand New, 'A' Grade Cells, Three Years Warranty!
60-Day Money-Back Guarantee
coming soon Laptop Battery Resource Center (User's Manual)
Battery Type: Li-ion
Voltage: 11.1V
Capacity: 5400mAh
Dimension: 180.00x81.80x20.20mm
Color: Dark blue

Product Details
  • 11.1V 5400mAh Li-ion Laptop Battery (Dark blue)
  • Product Type: Replacement Battery (Brand New)
  • Highest quality Japanese battery cells
  • 100% original manufacturer compatible
  • Brand New, three years warranty
  • Guaranteed to meet or exceed original specifications

This Laptop Battery can replace the following part numbers:
HP
  F3408H,   F3929HR,   F4307H,
  F2193,    F3924H,   F2024-80001A,
  F3926H,    F3933WR,   F2109,
  F3927H,    F2024B,   F3886HR,
  F3931HR,    F4309H,   F2024-80001,
  F3931H,    F2193-80001A,   F3928HR,
  F3980AV,    SI-CPL11U,   F3930H,
  F2024,    F3924HR,   F3933K,
  F2105,    F3925-60901,   F2024A,
  F3459H,    F3930HR,   F4308H,
  F2193-80001,    F3928H,   F2111-60901,
  F3927HR,    F3978AV,   LIP6088,
  3933H,    F2105A,   F3886HT,
  F3933HR,    CGR-B/946AE,   2111,

This Laptop Battery is also compatible with the following models:
HP
  F2412W,   F2303WC,   N5221-f2370m,
  F1941AR,    F2303W,   N5270-f2363mr,
  F3866M,    F2304W,   N5295-f2362m,
  F2406MR,    F2305W,   N5295-f2370m,
  n6401,    F2307WR,   N5341-f2355m,
  F2353M,    F2308WR,   N5402l-f3889h,
  Pavilion N5491,    F2309WT,   N5421-f2346mr,
  Pavilion N5170-F1939A,    F2311WT,   N5421-f2357m,
  Pavilion N5250-F2362M,    F2318K,   N5422l-f3962h,
  Pavilion N5310-F2345M,    F2320WT,   N5440-f3864m,
  Pavilion N5351-F2356M,    F2325KR,   N5452-f3958h,
  Pavilion N5444-F2413MG,    F2326KR,   N5470-f3784m,
  Pavilion N5425-F3924H,    F2381WT,   N5490 F2408m,
  Pavilion N5482 F3960H,    F2433WR,   Pavilion Xh226,
  Pavilion XH136-F1947A,    F2447WR,   Xh136-f1947ar,
  Pavilion XH365-F2349MR,    F2330K,   Xh216-f2366m,
  Pavilion XH555-F3929H,    F2331KT,   Xh355-f2456mr,
  Pavilion XH485 Series,    F2332K,   Xh395-f2456mr,
  F2336WG,    F2333K,   Xh535-f3928hr,
  Pavilinon XH675 (F3928HR),    F2334WC,   F2306kt,
  F23345G,    N5125-f1946ar,   F2336WT,
  N5195-f1937a,    F2337WT,   F2338W,
  F2339WT,    F2340WT,   F2341WR,
  n5140,    F2343KG,   n5241,
  F2344KT,    n5311,   F2375KR,
  n5402,    F2378W,   n5435,
  F2389K,    n5454,   F2390W,
  n5481,    F2392W,   n6190,
  F2394KT,    n6402,   F2396KT,
  xh216,    F2398KT,   xh535,
  F2400KT,    F2112K,   F2402KG,
  F2113WG,    F2460WT,   F2114W,
  F3709KS,    F2116KG,   F3725KS,
  F2117KR,    F3765W,   F2118KR,
  F3771W,    F2119KT,   F3777K,
  F2121K,    F3778WT,   F2123WT,
  F3860WR,    F2126K,   F3862K,
  F2262MT,    F3875W,   F2287M,
  F4139KS,    F2301KG,   F4712KG,
  F2302KG,    N5195-f1942a,   N5210-f2360m,
  n5100,    F2303WG,   N5250-f2362mr,
  N5420L,    F2304WG,   N5295-f2360mr,
  F2405M,    F2305WG,   N5295-f2364mr,
  F3786M,    F2307KT,   N5311-f2354m,
  F2367MR,    F2308KT,   N5381-f2358m,
  Pavilion N5440,    F2309K,   N5421-f2345m,
  Pavilion N5135-F1940AR,    F2310W,   N5421-f2354m,
  Pavilion N5240-F2361M,    F2316W,   N5421-f3782m,
  Pavilion N5271-F2373M,    F2320KT,   N5435-f4310h,
  Pavilion N5341-F2355M,    F2321WG,   N5450-f2406m,
  Pavilion N5420L-F2404M,    F2325WT,   N5462-f3959h,
  Pavilion N5490 F2408MR,    F2326WT,   N5481-f3785m,
  Pavilion N5442-F3957H,    F2382W,   N5491-f3785m,
  Pavilion N5435-F4310H,    F2441W,   Xh35,
  Pavilion XH355-F2456M,    F2330KG,   Xh176-f1948a,
  Pavilion XH535-F3928H,    F2330W,   Xh226-f2369m,
  Pavilion XH226 Series,    F2332KG,   Xh395-f2353m,
  F2332WT,    F2333KG,   Xh485-f2420m,
  Pavilinon XH675 (F3924H),    F2334KG,   Xh635-f5122hr,
  F2121w,    F2335KT,   F2381k,
  F2336K,    N5150-f1938a,   F2337WC,
  F2338WC,    F2339WC,   F2340WC,
  F2341K,    n5125,   F2342WC,
  n5210,    F2343WT,   n5290,
  F2344W,    n5371,   F2376W,
  n5422,    F2379W,   n5445,
  F2390KT,    n5472,   F2392KT,
  n5491,    F2393WT,   n6398,
  F2395K,    xh156,   F2397K,
  xh395,    F2399K,   PAVILION xh675,
  F2401WG,    F2113KG,   F2402W,
  F2114K,    F3708KS,   F2115WR,
  F3721WS,    F2116WT,   F3759KG,
  F2117WT,    F3770K,   F2118WT,
  F3776KG,    F2120WG,   F3778KG,
  F2122W,    F3860KR,   F2124W,
  F3861WT,    F2261MT,   F3863W,
  F2272WT,    F3883WT,   F2300KT,
  F4298W,    F2301WR,   N5195-f1940ar,
  F2409W,    F2302WR,   F3780WT,
  F2303KR,    N5240-f2361mr,   F2365M,
  F2304KR,    N5290- F2364m,   F2418M,
  F2305KR,    N5295-f2363m,   F3865M,
  F2306KR,    N5295-f2372m,   F1649AR,
  F2307W,    N5350-f2347mr,   F2420M,
  F2308W,    N5415-f3931h,   Pavilion N5125-F1946AR,
  F2310KT,    N5421-f2347mr,   Pavilion N5210-F2360M,
  F2315K,    N5421-f2404mr,   Pavilion N5261-F2372M,
  F2319K,    N5430,   Pavilion N5311-F2354M,
  F2321KG,    N5442-f3957h,   Pavilion N5381-F2358M,
  F2325K,    N5455-f3926h,   Pavilion N5461-F3784M,
  F2326K,    N5472 F3964h,   Pavilion N5402L-F3889H,
  F2382KT,    N5491-f2408m,   Pavilion N5412-F3963H,
  F2438WT,    Pavilion Xh395,   Pavilion XH156-F1948A,
  F2458W,    Xh176-f1649ar,   Pavilion XH455-F2419MR,
  F2330WG,    Xh226-f2366mr,   Pavilion XH635-F5122H,
  F2331WG,    Xh365-f2349mr,   Omnibook XE3-GC,
  F2332WG,    Xh455-f2419mr,   OmniBook XE3-GE (F4307H),
  F2333WG,    Xh555-f3929h,   Pavilinon XH675 (F3933H),
  F2334WT,    F2306wc,   F2335W,
  N5135-f1940a,    F2337KG,   N5195-f1939a,
  F2338KG,    F2339KR,   F2340KR,
  F2341KG,    Pavilion 5000 Series,   F2341W,
  n5170,    F2343K,   n5261,
  F2344WC,    n5341,   F2375K,
  n5415,    F2379K,   n5441,
  F2389WG,    n5461,   F2391K,
  n5484,    F2393KT,   n6395,
  F2394WT,    n6404,   F2396WT,
  xh335,    F2398WT,   xh555,
  F2400W,    F2112WR,   F2402K,
  F2113W,    F2468K,   F2115KR,
  F3711KS,    F2116K,   F3755M,
  F2117K,    F3767WG,   F2118K,
  F3773KT,    F2119WT,   F3777WR,
  F2122KT,    F3857W,   F2124KT,
  F3860W,    F2127K,   F3862W,
  F2271WG,    F3877W,   F2288W,
  F4144KS,    F2301KT,   F4714KT,
  F2302KT,    N5195-f1946a,   F2302W,
  N5210m,    F1942AR,   F2303WT,
  N5270-f2363m,    F2416M,   F2304WT,
  N5295-f2361mr,    F3783M,   F2305WT,
  N5295-f2365mr,    N5584,   F2307WG,
  N5340-f2346mr,    F2353MR,   F2308WG,
  N5390-f2348mr,    Pavilion N5450,   F2309WR,
  N5421-f2346m,    Pavilion N5150-F1938A,   F2311K,
  N5421-f2356m,    Pavilion N5241-F2371M,   F2317W,
  N5421l-f3782m,    Pavilion N5290-F2364MR,   F2320WG,
  N5440-f2405mr,    Pavilion N5350-F2347MR,   F2321W,
  N5450-f2413mg,    Pavilion N5421L-F3782M,   F2326KG,
  N5470-f2407mr,    Pavilion N5415-F3931H,   F2381KT,
  N5484-f4303hg,    Pavilion N5462-F3959H,   F2431K,
  Pavilion Xh176,    Pavilion N5495 F3942H,   F2443WT,
  Xh136-f1947a,    Pavilion XH365-F2349M,   F2330KT,
  Xh215-f2369m,    Pavilion XH545-F3933H,   F2331K,
  Xh355-f2456m,    Pavilion XH395 Series,   F2332KT,
  Xh395-f2456m,    F2335WG,   F2333KT,
  Xh535-f3928h,    Pavilinon XH675 (F3928H),   F2334K,
  Xh675-f3408hr,    F2306k,   F2335WC,
  N5125-f1946a,    F23346G,   N5190-f1941a,
  F2337WR,    F2338WT,   F2339WR,
  F2340WR,    F2341WG,   n5135,
  F2342W,    n5240,   F2344KG,
  n5310,    F2374W,   n5390,
  F2378K,    n5400,   F2389KT,
  n5452,    F2390WT,   n5475,
  F2392WT,    n6000,   F2394KG,
  n6400,    F2395W,   xh215,
  F2397W,    xh485,   F2399W,
  F2112KT,    F2401W,   F2113K,
  F2417WT,    F2114WT,   F3709WS,
  F2115W,    F3725WS,   F2117KG,
  F3760WG,    F2118KG,   F3771K,
  F2119KG,    F3777KT,   F2121KT,
  F3778WG,    F2123K,   F3860K,
  F2125W,    F3862KG,   F2262MR,
  F3875K,    F2278M,   F3894KG,
  F2300WT,    F4300K,   F2301W,
  N5195-f1941ar,    F2411W,   F3781WT,
  F2303K,    N5250-f2362m,   n5300,
  F2304K,    N5295-f2360m,   F3864M,
  F2305K,    N5295-f2364m,   F2407M,
  F2307KG,    N5310-f2345mr,   F2366MR,
  F2308KR,    N5371-f2357m,   Pavilion N5430,
  F2309KT,    N5420l-f2404mr,   Pavilion N5135-F1940A,
  F2310WT,    N5421-f2348mr,   Pavilion N5221-F2370M,
  F2316K,    N5421-f2416m,   Pavilion N5270-F2363MR,
  F2320KG,    N5430-f2418mr,   Pavilion N5340-F2346MR,
  F2321K,    N5445-f3941h,   Pavilion N5390-F2348MR,
  F2325WR,    N5461-f3784m,   Pavilion N5481-F3785M,
  F2326WR,    N5475 F3927h,   Pavilion N5445-F3941H,
  F2382WT,    N5491-f2414mg,   Pavilion N5454-F4302HG,
  F2440MT,    Xh260,   Pavilion XH216-F2366M,
  F2459W,    Xh176-f1947ar,   Pavilion XH675-F3408H,
  F2330WT,    Xh226-f2367mr,   Pavilion XH176 Series,
  F2331W,    Xh395-f2349mr,   Omnibook XE3L Series,
  F2332W,    Xh485-f2419mr,   OmniBook XE3-GE (F4309H),
  F2333W,    Xh635-f5122h,   F2116kt,
  F2335KG,    F2306wr,   F2336KT,
  N5140-f1951a,    F2337K,   F2338K,
  F2339K,    F2340K,   F2341KT,
  n5000,    F2342K,   n5195,
  F2343WG,    n5271,   F2344WT,
  n5351,    F2376K,   n5421,
  F2379WT,    n5444,   F2389W,
  n5470,    F2391W,   n5490,
  F2393K,    n6397,   F2395KT,
  xh136,    F2397KT,   xh365,
  F2399KT,    xh635,   F2401KT,
  F2112W,    F2402WT,   F2114KT,
  F2976W,    F2115WG,   F3719KS,
  F2116WR,    F3757W,   F2117WR,
  F3769WT,    F2118WR,   F3775KT,
  F2120KT,    F3777W,   F2122WT,
  F3859W,    F2124WT,   F3861WR,
  F2261MR,    F3863WT,   F2272WG,
  F3882W,    F2300KG,   F4146WS,
  F2301WG,    N5195-f1940a,   F4751WS,
  F2302WG,    N5195-f1951a,   F3779WT,
  F2303KG,    N5240-f2361m,   F1942A,
  F2304KG,    N5271-f2373m,   F2418MR,
  F2305KG,    N5295-f2362mr,   F2406M,
  F2306KG,    N5295-f2371m,   F1949A,
  F2307WT,    N5350-f2347m,   F2420MR,
  F2308WT,    N5412-f3963h,   Pavilion N5125-F1946A,
  F2309W,    N5421-f2347m,   Pavilion N5190-F1941A,
  F2311W,    N5421-f2358m,   Pavilion N5250-F2362MR,
  F2318W,    N5425-f3924h,   Pavilion N5310-F2345MR,
  F2320W,    N5441-f3783m,   Pavilion N5371-F2357M,
  F2325KT,    N5454-f4302hg,   Pavilion N5455-F3926HR,
  F2326KT,    N5470-f3865m,   Pavilion N5455-F3926H,
  F2381W,    N5490 F2408mr,   Pavilion N5422L-F3962H,
  F2433W,    Pavilion Xh355,   Pavilion XH136-F1947AR,
  F2458K,    Xh156-f1948a,   Pavilion XH455-F2419M,
  F2330WC,    Xh226-f2366m,   Pavilion XH575-F3930H,
  F2331WC,    Xh365-f2349m,   OmniBook XE3-GF Series,
  F2332WC,    Xh455-f2419m,   F2377W,
  F2333WC,    Xh545-f3933h,   Pavilinon XH675 (F3930H),
  F2334WG,    F2306w,   F2335WT,
  N5130-f1937a,    F2336W,   N5195-f1938a,
  F2337W,    F2339KG,   F2340KG,
  F2340W,    Omnibook XE3L,   F2341WT,
  n5150,    F2343KT,   n5250,
  F2344K,    n5340,   F2375KT,
  n5412,    F2379KT,   n5440,
  F2389WC,    n5455,   F2391KT,
  n5482,    F2393KG,   n6195,
  F2394K,    n6403,   F2396K,
  xh226,    F2398K,   xh545,
  F2400K,    F2112WG,   F2402KT,
  F2113WT,    F2467K,   F2115KG,
  F3711WS,    F2116KR,   F3754M,
  F2117KT,    F3766KT,   F2118KT,
  F3772W,    F2119WG,   F3777WG,
  F2121WT,    F3855W,   F2123W,
  F3860WT,    F2126W,   F3862WT,
  F2262M,    F3877KS,   F2287W,
  F4139W,    F2301KR,   F4713KT,
  F2302KR,    N5195-f1942ar,   N5210-f2360mr,
  F1939AR,    F2303WR,   N5261-f2372m,
  N5421L,    F2304WR,   N5295-f2361m,
  F2405MR,    F2305WR,   N5295-f2365m,
  N5511L,    F2307K,   N5340-f2346m,
  F2367M,    F2308K,   N5390-f2348m,
  Pavilion N5441,    F2309WG,   N5421-f2345mr,
  Pavilion N5140-F1951A,    F2311KT,   N5421-f2355m,
  Pavilion N5240-F2361MR,    F2317K,   N5421-f3866m,
  Pavilion N5290- F2364M,    F2320K,   N5440-f2405m,
  Pavilion N5350-F2347M,    F2321WT,   N5450-f2406mr,
  Pavilion N5420L-F2404MR,    F2325W,   N5470-f2407m,
  Pavilion N5490 F2408M,    F2326W,   N5482 F3960h,
  Pavilion N5452-F3958H,    F2429W,   N5491-f3786mn5495 F3942h,
  Pavilion N5484-F4303HG,    F2442KG,   Xh675,
  Pavilion XH355-F2456MR,    F2330KR,   Xh176-f1949a,
  Pavilion XH535-F3928HR,    F2331KG,   Xh226-f2369mr,
  Pavilion XH355 Series,    F2332KR,   Xh395-f2353mr,
  F2333WT,    F2333KR,   Xh485-f2420mr,
  Pavilinon XH675 (F3927H),    F2334KT,   Xh675-f3408h,
  F2,    F2335K,   F233,
  F2336WC,    N5170-f1939a,   F2337WG,
  F2338WG,    F2339WG,   F2340WG,
  F2341WC,    n5130,   F2342WT,
  n5221,    F2343W,   n5200,
  F2374K,    n5381,   F2377K,
  n5425,    F2389KG,   n5451,
  F2390K,    n5474,   F239K,
  n5495,    F2393W,   n6399,
  F2395WT,    xh176,   F2397WT,
  xh455,    F2399WT,   F2112KG,
  F2401WT,    F2113KT,   F2403W,
  F2114WG,    F3708WS,   F2115WT,
  F3722KS,    F2116W,   F3759WG,
  F2117W,    F3770W,   F2118W,
  F3776KR,    F2120WT,   F3778KT,
  F2123KT,    F3860KT,   F2125K,
  F3861W,    F2261M,   F3869WS,
  F2274M,    F3884WT,   F2300WG,
  F4298K,    F2301WT,   N5195-f1941a,
  F2410W,    F2302WT,   F3876WT,
  F2303KT,    N5241-f2371m,   F2365MR,
  F2304KT,    N5290-f2364mr,   F2415M,
  F2305KT,    N5295-f2363mr,   F2407MR,
  F2306WT,    N5310-f2345m,   F2369MR,
  F2308KG,    N5351-f2356m,   Pavilion N5421,
  F2309KG,    N5420l-f2404m,   Pavilion N5130-F1937A,
  F2310K,    N5421-f2348m,   Pavilion N5210-F2360MR,
  F2315W,    N5421-f2415m,   Pavilion N5270-F2363M,
  F2319W,    N5430-f2418m,   Pavilion N5340-F2346M,
  F2321KT,    N5444-f2413mg,   Pavilion N5390-F2348M,
  F2325WG,    N5455-f3926hr,   Pavilion N5474-F2414MG,
  F2326WG,    N5474-f2414mg,   Pavilion N5475 F3927H,
  F2382K,    N5491-f2408mr,   Pavilion N5472 F3964H,
  F2439M,    Pavilion Xh485,   Pavilion XH215-F2369M,
  F2459K,    Xh176-f1947a,   Pavilion XH675-F3408HR,
  F2330WR,    Xh226-f2367m,   Pavilion XH635-F5122HR,
  F2331WT,    Xh395-f2349m,   Omnibook XE3-GE,
  F2332WR,    Xh485-f2419m,   OmniBook XE3-GE (F4308H),
  F2333WR,    Xh575-f3930h,   F2115k,
  F2334W,    F2306wg,   F2336KG,
  N5135-f1940ar,    F2337KR,   F2338KT,
  F2339KT,    F2340KT,   F2341KR,
  OmniBook XE3,    F2342KT,   n5190,
  F2343WC,    n5270,   F2344WG,
  n5350,    F2375W,   n5420,
  F2379WC,    n5442,   F2389WT,
  n5462,    F2391WT,   n5485,
  F2393WG,    n6396,   F2394W,
  n6490,    F2396W,   xh355,
  F2398W,    xh575,   F2401KG,
  F2112WT,    F2402WG,   F2114KG,
  F2972W,    F2115KT,   F3714WS,
  F2116WG,    F3756M,   F2117WG,
  F3768WT,    F2118WG,   F3774KG,
  F2120KG,    F3777WT,   F2122K,
  F3858W,    F2124K,   F3861K,
  F2127W,    F3863WR,   F2271WT,
  F3878W,    F2289WT,   F4145WS,
  F2301K,    N5195-f1939ar,   F4301W,
  F2302K,    N5195-f1946ar,  
Choosing the right Charger / AC adapter:Before you buy any AC laptop adapter, please make sure the AC laptop adapter will give you the correct voltage and suitable current output.

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 18.5V (Output), 3.5A(Output Current)
Power: 65W
Connector Size: 7.4*5.0

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 18.5V (Output), 3.5A(Output Current)
Power: 65W
Connector Size: 4.8*1.7

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 19V (Output), 4.74A(Output Current)
Power: 90W
Connector Size: 7.4*5.0

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 19.5V (Output), 4.62A(Output Current)
Power: 90W
Connector Size: 4.5*3.0

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 19V(Output), 4.74A(Output Current)
Power: 90W
Connector Size: 4.8*1.7

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 19.5V (Output), 3.33A(Output Current)
Power: 65W
Connector Size: 4.8*1.7

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 19.5V (Output), 3.33A(Output Current)
Power: 65W
Connector Size: 4.5*3.0

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 19.5V (Output, 2.05A(Output Current)
Power: 40W
Connector Size: 4.0*1.7

Click to Enlarge

Replacement Laptop AC Adapter for HP
Voltage: 19V (Output), 1.58A(Output Current)
Power: 30W
Connector Size: 4.0*1.7
 
See our tips for Extending Your Laptops Battery Life

How to maximize and battery performance?

It is recommended to condition (fully charge and discharge) tde new battery few times to allow it to reach its maximum rated capacity.
Condition tde Ni-MH and Nicd battery at least once a montd. It will reduce tde memory effect.
Use tde battery at least once a montd even it was kept in a dry and cool storage.
Clean tde metal connector (tde contact to tde notebook, usually in color of gold or silver) by alcohol or Electronics Cleaner Degreaser. It will maintain tde good conductivity,which improves tde power conduction from battery to Notebook.
Fully optimize tde Power Management features provided in system BIOS, and Operating System will also impove tde battery performance.Consult tde user's manual to fully understand tde usage of tdese features.

Is there any danger in leaving a laptop on 24 hours a day?

As long as it's in a well ventilated area, there's no danger. At least, no more danger than there would be if you left your desktop computer on all day. The danger to laptops is overheating. Because all the hardware is in such cramped quarters, it tends to get very hot. The bottom gets hot, so be careful where you put it. You may even want to put it on something raised so the air can get to the bottom. If you leave a laptop on blankets or a bed, it will often overheat because the insulation of the material is keeping the heat in. A tip that may help you when you're transporting your laptop is to take out the battery to ensure that you don't accidentally leave the laptop on.

Important note : Beware of refurbished Li-ion laptop batteries for bargain prices, due to the volatile nature of the Lithium Ion compounds, batteries must have matching cells and correctly calibrated control & safety electronics. All our new laptop batteries are made to the highest standards by quality manufacturers that also make original laptop batteries for many of the big brand names. Refurbished Li-ion laptop batteries are usually sold at highly discounted prices and thus are normally produced for the lowest possible price, often with little regard for thier long term stability, this can lead to them overheating or in extreme cases catching fire or exploding, this one area where quality should not be sacrificed for cheapness