AG4 Battery pack of ten. Can be used to replace SR626 watch batteries. Commonly known as an SR66 and LR66 battery. See our full list of equivalent batteries below.
AG4 Battery Specifications:
- Diameter: 6.8mm
- Height: 2.6mm
- Voltage: 1.5V
- Capacity: 18mAh
- Weight: 0.36g
- Operating Temperature: -18℃ to 55 ℃
AG4 Cross Reference and Equivalent Batteries
- 1176SO, 177, 376, 377, 377A, 377X, 377BA, E377, E377A, E377CA, , 377S, V377, D377
- 280-39, 626, 606, 626A, A1398
- BP10, G4, G4A, GP177, GP377, GP7, GP77, GP77A
- L626, LR626, LR626SW, LR66
- SG4, SR4, SB-AW, S626E
- SR626, SR626SW, SR626W, SR66, SR66SW, SR628SW, SR6265W, SR66SW, SR625SW, CR626SW
With a low discharge rate of <1% per year equating to a 10+year shelf life with almost full capacity. AG4 specifications & datasheet. We have a full range of AG4 batteries with all major brands available.

BT18443 Replacement Battery
JBL Charge 3 Battery Type A GSP1029102A
iPhone 6S Plus Battery (616-00045)
iPhone SE Battery 2020 2nd Generation
Huawei HB3742A0EBC | HB3742A0EBW Battery Replacement
LR57 Battery Pack of 10 Alkaline 1.5V
Uniden BT-909 Battery Replacement
Huawei P40 Lite Battery Replacement
iPhone 8 Battery
LR41 Battery Alkaline 1.5V - 10 Pack
Huawei Ascend G535 Battery Replacement
LR754 Battery Pack of 10 Alkaline 1.5V
BBTY0566001 Battery Replacement
Uniden BT-10005 Battery Replacement
LG Optimus G2 Battery (EAC62058701)
Dyson V10 Battery SV12 High Capacity Replacement
Dyson DC62 Battery For V6 Handheld Vacuums
Sony Xperia Z3 Compact LIS1561ERPC Battery
Vtech BT28443 Battery Replacement (BT18443, CPH-518D)
LG G4 BL-51YF Battery Replacement
LM1225 Battery Lithium 3V - 5 Pack
CR1216 Lithium Battery 3V Pack of 5
Motorola Moto Droid Ultra XT1080 Battery (SNN5925A)
Apple iPhone 5S Battery Replacement With Tools
Maxell SR1120W Battery Silver Oxide
Samsung Galaxy S7 Battery SM-G930 / EB-BG930ABA / EB-BG930ABE
Samsung Galaxy Note Replacement Battery N7000
Samsung Note 3 Battery N9000
Samsung Galaxy S8 Battery Replacement SM-G950 & Tool kit
Apple Watch Series 1 38mm A1578 Battery Replacement
Samsung Galaxy S5 Battery EB-BG900BBC
Huawei Ascend G6 Battery Replacement
Motorola Moto Z Battery Replacement GV30 XT1650
Huawei Ascend G620s Battery Replacement
Huawei Ascend Y530 Battery Replacement
Huawei Ascend G330 | G330D Battery Replacement
LR626 Battery Pack of 10 Alkaline 1.5V
LR620 Battery Pack of 10 Alkaline 1.5V



