The 28 volt (nominal) 58 amp/hr Powervamp Coolspool 58 portable GPU was developed for turbine aircraft and helicopters where portability requirements limit weight and size, but the need to maintain voltage above minimum FADEC limits during the start cycle is critical.
Compared to a 24V GPU, the Coolspool 58 typically delivers a 30% increase in performance (watts) for the same amperage. The off-charge voltage of 30V, the GPU delivers faster spool-ups, cooler starts and a faster, more positive systems response, which benefits turbine life and system reliability.
The Coolspool 58 has 2 built-in mini charger. Connecting any 110/220 volt power cord into the GPU will automatically activate the integral 3-stage charger. A 3-colour LED indicates charging status and a voltmeter displays voltage.