Ryobi 18 One + charger (Holyford EX24)

I have the RB 1820C 2.0Ah One + battery but apparently all Ryobi 18V One + chargers work with all models of One + batteries.

I acquired two tools and the flat battery on Freecycle from a lady in Seaton. So even a loan of a charger (or I could leave my battery with you) would be helpful in trying to find out if any of the items work.

Thanks for having a look.