521 PLUS 522 intelligent Pump battery AGM 4.5ah batteries 6v
Replacement 521 PLUS 522 intelligent Pump non spill battery pack, safe can be used in portable devices, 6v 4.5ah valve regulated sealed lead VRLA AGM rechargeable batteries at low cost

Below you will find more details of our replacement battery for the 521 PLUS 522 intelligent Pump which are valve regulated sealed lead 6-volt 4.5ah, these are of course rechargeable, the cells are deep cycle so good for storing energy, they are non-spillable so can be found in many different pieces of equipment from a torch to high end medical equipment

• 521 PLUS 522 intelligent Pump battery

These type of cell is AGM, this means that they do not require any maintenance, the acid is safely constrained within a glass mat between the cells and it will not leak so it's ok to mount on its side, it will not spill, they are also valve regulated for safety

Although we have supplied the information on the page in good faith there are many reasons why this compatible battery could be incorrect ordered, the physical dimensions are listed below, if your old battery is only 4ah then that's not a problem, this 4.5ah version will last longer between charges

Voltage = 6-volts
Capacity = 4.5Ah @ 20Hr
Chemistry = AGM, VRLA

There is one quality batteries for the dimensions of the individual battery pack are as follows
Length = 70mm or 2.75-inches
Width = 47mm or 2.91-inches
Height = 100mm or 3.93-inches