TLDR with revision of the above post: I probably will buy the battery from amazon, since its the same brand and 2000 mAh. Amazon.com : Tenergy 9.6V Airsoft Battery 2000mAh NiMH Nunchuck Battery w/Mini Tamiya Connector for Airsoft Gun + 8.4V-9.6V NiMH Battery Charger w/Mini Tamiya Connector and Standard Tamiya Adaptor : Sports & Outdoors
I just noticed that evike's one is cheaper, but it is sold out. Knowing niche hobbies like fishkeeping, rocketry, rc planes and airsoft, they may not get it fast. Will buy from there if it is available, but evike's is the same brand as the one from amazon. I got prime so free shipping. If its time to buy, ill use amazon if evike's isnt available. Will ask evike.
Edit: found this charger. Cheaper, smaller, and seems better. Might not be compatible. Amazon.com : Tenergy 9.6V Airsoft Battery 2000mAh NiMH Nunchuck Battery w/Mini Tamiya Connector for Airsoft Gun + 8.4V-9.6V NiMH Battery Charger w/Mini Tamiya Connector and Standard Tamiya Adaptor : Sports & Outdoors