NUT 'netclient' integration adds 25 entities out of approximately 49 possible

I have configured the NUT add on in HA as a ‘netclient’. I am monitoring two UPS’s.
the integrations were successful, as I can see 24 to 25 entities (per UPS) that have been created by HA.
Could someone explain how HA determines to which entities to create.
When I run upsc for my APC 750es UPS it returns the following values

battery.charge:100
battery.charge.low:10
battery.charge.warning:50
battery.date:2001/09/25
battery.mfr.date:2009/08/07
battery.runtime:714
battery.runtime.low:120
battery.type:PbAc
battery.voltage:13.7
battery.voltage.nominal:12.0
device.mfr:American Power Conversion
device.model:Back-UPS ES 750
device.serial:3B0932X35501
device.type:ups
driver.name:usbhid-ups
driver.parameter.bus:006
driver.parameter.pollfreq:30
driver.parameter.pollinterval:15
driver.parameter.port:auto
driver.parameter.product:Back-UPS ES 750 FW:841.I3 .D USB FW:I3
driver.parameter.productid:0002
driver.parameter.serial:3B0932X35501
driver.parameter.synchronous:no
driver.parameter.vendor:American Power Conversion
driver.parameter.vendorid:051D
driver.version:2.7.4
driver.version.data:APC HID 0.96
driver.version.internal:0.41
input.sensitivity:medium
input.transfer.high:139
input.transfer.low:92
input.transfer.reason:input voltage out of range
input.voltage:119.0
input.voltage.nominal:120
ups.beeper.status:enabled
ups.delay.shutdown:20
ups.firmware:841.I3 .D
ups.firmware.aux:I3
ups.load:8
ups.mfr :American Power Conversion
ups.mfr.date:2009/08/07
ups.model:Back-UPS ES 750
ups.productid:0002
ups.realpower.nominal:450
ups.serial:3B0932X35501
ups.status:OL
ups.test.result:No test initiated
ups.timer.reboot:0
ups.timer.shutdown:-1
ups.vendorid:051d

but only the bolded values are reported by HA as entities.
Is there anyway to make all values available as entities???

Thanks for any help.