RTC Battery

So, we have 15 Toshiba Satellite C55-B5362 laptops in use at our school. Such a strong model so far. Several laptops are now showing "RTC Batter low" at boot time.......a clear indication that the CMOS battery is dead/low. To our surprise, when the laptop was opened, there was a white painted...

My CMOS/RTC battery in my HP notebook is down, and it's a rather rare CR2320 with wires. Ordering this item takes 2 weeks. Instead, I could order a CR2032 with wires within 2 days. When both are 3 Volt and the CR2032 fits into the case just fine, is this okay to do or can it harm the notebook?