Originally Posted by
ItsJustMe
Shouldn't matter at all. If it can take 4 AA NiMHs, it knows how to regulate current, because 4 NiMH AAs are fully capable of dumping enough current into that sucker to light it on fire. If it can handle that, it can handle a 6V SLA battery.
+1 I agree.
6 Volts is 6 Volts. As long as the voltage is compatible, should be fine. The only issue with using different battery technology is when the device has some "smart power management" capability. The worst that can happen in this case is the device might shut down due to sensing "low battery capacity" before the "different" battery is truly exhausted. Generally a small annoyance if it occurs at all.
dennyd