Batteries

This page gives an overview over the different types of system batteries found in ThinkPads. UltraBay batteries are listed in the UltraBay Devices overview. For advice on battery treatment, see Maintenance. See also Lenovo's Batteries and Battery Chargers - Reference guide.

Clock/CMOS Battery

ML1220

The G40 and the G41 do not use CR1220 cells as their CMOS battery, instead, they use a rechargeable ML1220 lithium-ion cell battery. The CMOS battery socket can be found underneath the RAM slot hatch.

CR2025

There is a CR2025 with a two-lead cable on it under the lid with the SDRAM-Slots beneath it. It´s hardly visible, but you can plug out the cable and softly pull on it. Also on 600E, and probably X and D, too. Hardly neccesary to replace, as it keeps good for nearly ten years, but that´s the age of the 600 series now (2010).

CR1220

Fits right in a socket, no cable assy on solder tabs. FRU 11J8591.

• 380, 380D
• i Series 1410, i Series 1411, i Series 1412

Types of Batteries featured in ThinkPads

Standard AA batteries

• ThinkPad 220

NiCd Battery

• ThinkPad 340, 340CSE
• ThinkPad 345C, 345CS
• ThinkPad 701C, 701CS
• ThinkPad 710T

NiMH Battery

Stupid (controller-less battery packs)

• ThinkPad 300
• ThinkPad 310, 310D, 310E, 310ED
• ThinkPad 350, 350C
• ThinkPad 355, 355CS, 355C
• ThinkPad 360, 360CS, 360C, 360P, 360CSE, 360CE, 360PE
• ThinkPad 365CS, 365C, 365CSD, 365CD, 365E, 365ED, 365X, 365XD
• ThinkPad 380, 380D, 380E
• ThinkPad 385D
• ThinkPad 500, 510CS
• ThinkPad 700, 700C
• ThinkPad 701C, 701CS
• ThinkPad 720, 720C
• ThinkPad 730T, 730TE
• ThinkPad i Series 1200, i Series 1210, i Series 1230, i Series 1250, i Series 1260, i Series 1300, i Series 1330, i Series 1370, i Series 1410, i Series 1411, i Series 1450, i Series 1451

Smart (packs with embedded microcontroller)

• ThinkPad 370C
• ThinkPad 390, 390E, 390X
• ThinkPad 750, 750CS, 750C, 750P
• ThinkPad 755C, 755CS, 755CSE, 755CE, 755CX, 755CV, 755CD, 755CDV
• ThinkPad 760L, 760LD
• ThinkPad 820, 850, 860
• ThinkPad i Series 1420, i Series 1421, i Series 1422, i Series 1442, i Series 1482, i Series 1542

LiIon Battery

Stupid (controller-less battery packs)

• ThinkPad 130
• ThinkPad 380ED, 380XD, 380Z
• ThinkPad 385ED, 385XD
• ThinkPad 535, 535E, 535X
• ThinkPad i Series 1200, i Series 1300, i Series 1412, i Series 1452, i Series 1472

Smart (packs with embedded microcontroller)

• ThinkPad 240, 240X, 240Z
• ThinkPad 390, 390E, 390X
• ThinkPad 560, 560E, 560X, 560Z
• ThinkPad 570, 570E
• ThinkPad 600, 600, 600E, 600X
• ThinkPad 755CX
• ThinkPad 760C, 760CD, 760EL, 760ELD, 760E, 760ED, 760XL, 760XD
• ThinkPad 765L, 765D
• ThinkPad 770, 770E, 770ED, 770X, 770Z
• ThinkPad i Series 1441, i Series 1460, i Series 1480, i Series 1483, i Series 1492, i Series 1512, i Series 1552, i Series 1540, i Series 1541, i Series 1560, i Series 1562, i Series 1592
• ThinkPad A20m, A20p, A21e, A21m, A21p, A22e, A22m, A22p, A30, A30p, A31, A31p, A275, A285, A475, A485
• ThinkPad Template:E14, Template:E15, Edge 11", Edge 13, Edge 14", Edge 15", Edge L330, Edge S430, Edge E120, Edge E125, Edge E130, Edge E135, Edge E145, Edge E220s, Edge E320, Edge E325, Edge E330, Edge E335, Edge E420, Edge E420s, Edge E425, Edge E430, Edge E430c, Edge E431, Edge E435, Edge E440, Edge E445, Template:E450, Template:E450c, Template:E455, Template:E460, Template:E465, Template:E470, Template:E470c, Template:E475, Template:E480, Template:E485, Template:E490, Template:E490s, Template:E495, Edge E520, Edge E525, Edge E530, Edge E530c, Edge E531, Edge E535, Edge E540, Edge E545, Template:E550, Template:E550c, Template:E555, Template:E560, Template:E560p, Template:E565, Template:E570, Template:E570c, Template:E570p, Template:E575, Template:E580, Template:E585, Template:E590, Template:E595
• ThinkPad G40, G41, G50
• ThinkPad Template:R14, Template:R15, R30, R31, R32, R40, R40e, R50, R50e, R50p, R51, R51e, R52, R60, R60e, R60i, R61, R61e, R61i, R400, R480, R490, R500, R580, R590
• ThinkPad Template:S1, Template:S1 G2, Template:S1 G3, Template:S2, Template:S2 G2, Template:S2 G3, Template:S2 G4, Template:S2 G5, Template:S3, Template:S5, Template:S5 G2, S30, S31, S431, S440, S440 Touch, S531, S540, S540 Touch
• ThinkPad T14, T14s, T15, T20, T21, T22, T23, T30, T40, T40p, T41, T41p, T42, T42p, T43, T43p, T60, T60p, T61, T61p, T400, T400s, T410, T410i, T410s, T410si, T420, T420i, T420s, T420si, T430, T430i, T430s, T430si, T430u, T431s, T440, T440s, T440p, T450, T450s, T460, T460s, T460p, T470, T470s, T470p, T480, T480s, T490, T490s, T495, T495s, T500, T510, T510i, T520, T520i, T530, T530i, T540p, T550, T560, T570, T580, T590
• ThinkPad X1, X1 Carbon, X1 Carbon G2, X1 Carbon G3, X1 Carbon G4, X1 Carbon G5, X1 Carbon G6, X1 Carbon G7, X1 Carbon G8, X1 Extreme, X1 Extreme G2, X1 Hybrid, X13, X20, X21, X22, X23, X24, X30, X31, X32, X40, X41, X41 Tablet, X60, X60s, X60 Tablet, X61, X61s, X61Ls, X61 Tablet, X100e, X120e, X121e, X130e, X131e, X140e, X200, X200s, X200 Tablet, X201, X201i, X201s, X201si, X201 Tablet, X201i Tablet, X220, X220i, X220 Tablet, X220i Tablet, X230, X230i, X230s, X230 Tablet, X230i Tablet, X240, X240s, X250, X260, X270, X280, X300, X301, X390, X395
• ThinkPad Z60m, Z60t, Z61e, Z61m, Z61p, Z61t
• ThinkPad TransNote