Discount so good, it deserves its own GitHub repo: $45.94 at Banggood. Updated: 10-01-2026.
4 pcs. Astrolux E2145 4500mAh 28A 3.7V 21700 Battery Unprotected
Banggood warehouse: China.
Price: $45.94
Additional Banggood coupons:
1. First page
2. Second page
Other warehouses/versions
1 another warehouse/version in my CouponsFromChina database:
1. Europe
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Price history and price alert
Do you need price history chart (for all/most countries) for 4 pcs. Astrolux E2145 4500mAh 28A 3.7V 21700 Battery Unprotected? There we go. The lowest price was: $28.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).