Help Centre10009053G03 - https://www.buggypartsdirect.co.uk/ezgo-delta-q-350w-battery-charger---2017-2025-lithium-models-209082-p.asp
Max dc output power 350w
Max dc current 7amp
Nominal dc output 48 volt max 50.2volt
EZ10004916 - https://www.buggypartsdirect.co.uk/ezgo-delta-q-quiq-rxv-48v-lithium-ion-charger-71927-p.asp
Mac dc output power 810w
Max dc current 12.8 Amp
Nominal dc output 51 volts max 56 volts
EZ10004916 is popular due to its higher voltage output which reduces charge time, it is more popular on multi and triple pack as the load is higher charging more than one battery,
The Lite charger 10009053G03 is a budget option which EZGO offers at a reduced output.