Aliexpress
Click here… to search for Anvolan 12V LiFePO4 Battery Pack 12V 50Ah [EU] on Aliexpress
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Banggood
Banggood warehouse is located in Europe 
. There are no coupons for this product in Banggood. I don’t really know if this price is reasonable, coz there’s no price history in my DB.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
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Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was 134.9 USD).
You can set price alert (for Banggood).