余额宝添加的银行卡就是支付宝添加的银行卡。具体方法如下：
手机添加银行卡：
1、打开手机支付宝，点击个人中心。
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https://iknow-pic.cdn.bcebos.com/3ac79f3df8dcd100383cfeaa7c8b4710b8122f9c"/>
2、点击我的银行卡。
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https://iknow-pic.cdn.bcebos.com/6609c93d70cf3bc7e0a0cb67df00baa1cc112a9c"/>
3、点击右上角加号添加银行卡。
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https://iknow-pic.cdn.bcebos.com/64380cd7912397dd8cf29d8f5782b2b7d1a287b5"/>
4、输入银行卡号，点击下一步。
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https://iknow-pic.cdn.bcebos.com/30adcbef76094b369b191e66adcc7cd98c109db5"/>
5、输入绑定手机号并提取验证码然后点击下一步。
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https://iknow-pic.cdn.bcebos.com/0bd162d9f2d3572cf7739a578413632763d0c3ac"/>
6、绑定成功，请愉快的支付吧。
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https://iknow-pic.cdn.bcebos.com/03087bf40ad162d9167f64971fdfa9ec8b13cdac"/>