08/12
DS0014 – Issue 1
NICKEL METAL HYDRIDE BATTERIES
Description
Mackwell 4Ah Nickel Metal Hydride
(NiMH) cells offer equal charge
capacity to 4Ah ‘D Type’ Nickel
Cadmium cells, but in a smaller
package, enabling them to be used
in smaller spaces.
They are available in both side-byside and stick formats and provide 4years life as required by BS
EN60598- 2-22 and ICEL 1001,
when operated within the
temperature ranges specified below.
If the temperature ranges are
exceeded, performance and
operational life of the cells will be
reduced.
The batteries are supplied with tag
connections and ‘flying lead’ black
and red wire assembly to allow
simple push in connection to our
emergency modules.
We recommend a maximum storage
time of three years at an ambient
temperature of 25°C. If this is
exceeded it will be necessary to
complete three charge / discharge
cycles to restore full working
capacity.
If you use a battery pack not
supplied by Mackwell, you should
ensure that it is correctly rated for
the application.
NICKEL METAL HYDRIDE BATTERIES
4 Ah NiMH Side by Side (SBS) packs for 3-hour duration:
Catalogue Number
No of cells
Nominal volts
Capacity
Min-Max cell temp range
Length x Width
Height
Fixing Centres
Cable Length
B914
B916
4
4.8
4Ah
10-50°C
80 x 71
19
None
240
6
7.2
4Ah
10-50°C
120 x 71
19
None
240
4 Ah NiMH Sticks with End Caps for 3-hour duration:
Catalogue No
No of cells
Nominal Volts
Capacity
Min – Max cell temp range
Length (with End Caps)
Fixing centres
Width (with End Caps)
Height (with End Caps)
Cable Length
B902
B903
B904*
B905*
B906*
2
2.4
4Ah
1050°C
176
166
27
21
400
3
3.6
4Ah
1050°C
246
236
27
21
400
2+2
4.8
4Ah
10-50°C
2+3
6.0
4Ah
10-50°C
3+3
7.2
4Ah
10-50°C
176 + 176
166 + 166
27
21
400
176 + 246
100 + 236
27
21
600
246 + 246
236 + 236
27
21
600
*Supplied in two parts with a link, to be mounted end-to-end or side-by-side.
All dimensions are in millimetres.
We reserve the right to alter specifications without prior notice.