12v
acid
ampere
anode
auxiliary
backup
battery
capacity
cathode
change
closeup
contact
current
dc
device
direct current
electric
electrode
emergency
energy
equipment
fix
industrial
maintenance
maintenance free
negative
object
part
plastic
positive
power
protected
recharge
rechargeable
recycle
recycling
repair
replace
replacement
sealed
service
source
spare
supply
technology
terminal
uninterruptible
ups
volt
voltage