I bought my SKY RC NC2500 in 2013 in Asia so the charger has plug similar to EU plug and works with adapter for US 120v.
There's Android and iPhone apps to connect via bluetooth get battery statistics and adjust settings.
I currently use the 12v/2.5A power adapter from a retired NETGEAR wireless router to power the NC2500.
For my AA Eneloop Pro and XX there's charge settings from 200mA to 2500mA
For standard white Eneloops there's settings from 200mA to 2000mA
For AAA Eneloops there's settings from 200mA to 1000mA
I'm usually in no rush so my primary setting is 500mA
Battery resistance is displayed in the phone app.
Charging the Eneloop batteries in an Xtar VC4 yielded mixed capacity results
If I didn't have this charger for my Eneloop XX,Pro and standard batteries I'd probably get an Opus C2400 from Amazon.
The Sanyo/Panasonic XX sat unused for 7 years and then using the Cycle mode at 200mA charged them to full capacity.
I see a SKY NC1500 on Ebay but know nothing about it.