Battery: 7.4V 1800mAh 25C LiPo, Flying Time: 15 – 16mins, Compatible with Additional Gimbal: Yes, Detailed Control Distance: 200-300m.
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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 code price check (UTC time):
Banggood
Banggood warehouse is located in China. Coupons for MJX Bugs 5W B5W Drone Gray 2 Batteries? Nope, there’re no coupons in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGB5W30
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 2 another warehouse/versions!
1. China – MJX Bugs 5W B5W Drone Gray 1 Batt ($-3)
2. China – MJX Bugs 5W B5W Drone Gray 3 Batteries ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for MJX Bugs 5W B5W Drone Gray 2 Batteries? There we go. The lowest price was: $139.99.
Price records source(s): Gearbest, 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)).