No matter what you are going to get from outside world, you need to find a way to connect with outside world. Similar, if your Acer laptops need more power energy, users need to have a qualified laptop battery and AC adapter with correct compatibility.
As is known to all, compatible laptop batteries are specialized designed for certain laptop models. As is exemplified with this Acer laptop battery BTP-BQJ1, the compatible laptop models have included Extensa 4630-4922, TravelMate 3304WXMi, TravelMate 6291-6059, Aspire 3640NWXCi and so on. If you cannot get a correct model number, there? another way for you to check the compatibility. That is the battery parts number.
To get enough power energy from batteries, users need to check if such a version is of suitable output power. Usually, we cannot get accurate information about output voltage and current. And this BTP-BQJ1 6-cell version is designed and manufactured according to the Acer OEM specifications. That is why our Acer compatible laptop batteries are regarded to be more safety and steady when installed in many Acer notebooks.