This is a generic, equivalent one, 100% compatible! 15.2V 48Wh replacement/equivalent Rechargeable Li-ion battery is 100% compatible with Acer AC14B8K AC14B3K KT.0040G.004 KT0030G.004 CB3-111 CB3-531 CB5-311, Brand new, one year warranty!

Replaces the following Acer battery part numbers:
AC14B8K, AC14B3K, KT.0040G.004, KT0030G.004

Compatible with the following Acer Laptop models:
For Acer Chromebook CB3-111 CB3-111-C8UB CB3-531 CB5-311 CB5-571
For Acer Chromebook C810 C910
For Acer Extensa 2508 2519
For Acer Packard Bell EasyNote TF71-BM TG71-BM TG81-BA TG83-BA
For Acer TravelMate B115-M B115-MP B116-M B116-MP B117-M B117-MP P236-M P238-M
For Acer Aspire V3-371 V3-111P V3-371
For Acer Aspire V5-122 V5-132 V5-122P V5-132P
For Acer Aspire E3-111 E3-112 E3-112M
For Acer Aspire ES1-111 ES1-111M ES1-131 ES1-311 ES1-331 ES1-511 ES1-512 ES1-520 ES1-521 ES1-531 ES1-731 ES1-731G
For Acer Aspire E5-771 E5-771G
For Acer Aspire R3-131T
For Acer Aspire R5-431T R5-471T
For Acer Aspire R7-371T R7-372T
For Acer Gateway NE512

Specifications:
◆ Product type: generic/equivalent
◆ Voltage: 15.2V
◆ Capacity: 48Wh
◆ Battery Composition: Li-ion
◆ Condition: brand new, 1 year warranty!
◆ No memory effect, Over-charge protection, Short-circuit protection.

Package Included:
1 x 15.2V Replacement Battery for Acer AC14B8K AC14B3K KT.0040G.004 KT0030G.004 CB3-111 CB3-531 CB5-311 48Wh

Notice:
If your battery part NO. or your machine model NO. are not listed in the description, our battery may still fit your laptop. Therefore, please feel free to contact us to confirm the compatibility.