Size / Length 65.2 ± 0.30 mm, Discharging Current 15A, Nominal Capacity 5000mAh, Internal Resitance ＜20mΩ, Charging Current 2500mA, Operate Temperature / Discharge -20℃~60℃, Nominal Voltage 3.7v, Net weight 95 ± 2 g, Name Astrolux® C2650 5000mAh 3C 15A 26650 Battery, Brand & Model Astrolux® C2650, Storage Temperature -20℃~20℃, Operate Temperature / Charge 0℃~45℃, Size / Diameter 26.7 ± 0.20 mm, Discharging Cut-off Voltage 2.75V.
Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. I don’t want to misguide you about the price. I don’t know if it’s good, because I don’t have enough records in my database…
Link: Banggood product page
1. ($59.49): BGtorch3
2. ($62.99): BGtorch2
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGCuponation10, 4BLF, BGHONEY2110, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BGFLBA, BANGGOODSD, BGTorch4, 00c906, BGAlerabat15, BGtorch7
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 10x Astrolux C2650 5000mAh 3C 3.7V 26650 Battery 15A ($-3)
Price history and price alert
There is only one database record (it was for $59.49), so you can’t see price history chart.
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)).