Internal Resistance
Float Voltage
Nominal Voltage 12V
Rated Capacity 170Ah (8 hour rate) to 1.80V/cell @25 (77 )
O O
C F
55kg
Approx  3.22m
The residual capacity is above 90% after 90 days storage(25 /77 )
O O
C F
42.5A
Equalize and Cycle Serivice
2.35V~2.40V/cell@25 (77 )
O O
C F
Self Discharge
Terminal
5min          15min        30min         45min         1h             2h            3h            4h            5h             6h             8h           10h          12h           20h           24h     
End voltage 
per cell
1.60V 621  334  202  147  119  68.0  49.3  38.7  32.7  28.1  21.4  17.7  14.9  9.35  7.82 
1.67V 584  322  199  146  118  67.6  48.4  38.5  32.5  27.8  21.4  17.5  14.9  9.27  7.75 
1.70V 578  316  196  144  117  67.1  48.2  38.3  32.0  27.6  21.3  17.5  14.8  9.25  7.74 
1.75V 531  307  194  143  115  65.4  47.6  37.8  31.8  27.4  21.3  17.4  14.8  9.23  7.74 
1.80V 476  286  186  138  112  64.8  47.3  37.7  31.1  26.8  21.2  17.2  14.6  9.14  7.72 
1.83V 454  262  182  133  107  64.0  45.7  36.0  30.1  25.9  20.7  16.6  13.9  9.12  7.60 
1.85V 426  254  170  128  104  61.6  44.5  35.5  29.4  25.3  20.1  16.4  13.8  8.94  7.53 
5min          15min        30min         45min         1h             2h            3h            4h            5h             6h             8h           10h          12h           20h           24h    
End voltage 
per cell
1.60V 1038  587  366  275  223  128  93.7  74.3  62.7  54.0  41.8  34.3  28.9  18.5  15.5 
1.67V 1000  576  363  273  222  128  92.5  74.2  62.7  53.7  41.6  34.1  28.9  18.5  15.5 
1.70V 994  570  363  273  221  127  92.5  73.9  61.7  53.3  41.3  33.8  28.6  18.4  15.5 
1.75V 928  565  361  273  218  127  91.5  73.8  61.7  53.1  40.9  33.8  28.6  18.4  15.5 
1.80V 851  534  353  266  217  126  91.3  73.6  60.7  52.6  40.8  33.6  28.5  18.4  15.5 
1.83V 813  490  348  258  208  125  89.2  70.9  59.4  51.0  40.4  32.8  27.7  18.3  15.3 
1.85V 760  478  324  248  202  121  86.7  70.0  57.9  50.0  39.2  32.5  27.4  18.0  15.2  
Recommended Maximum 
Charging Current Limit
Operating Temperature Range
2.25V/cell@25 (77 )
O O
C F
Model: 
MP SERIES
The products are used as standby power for communication, power, 
military and broadcast and television system. They possess precise
ABS heat seal technology between container and lid and patented
post seal structure. The design float life is12 years at 25(77).
stored energy solutions for a demanding world
6-GFM-170F
Dimensions-mm[inch] 
Specifications
6-GFM-170F Battery Model
Typical Weight
Operation(maximum)     -40  to 55 -40  to 131
Operation(recommended) 15  to 25 59  to 77 
Storage                  -20  to 40 -4  to 104
O O O O
C C( F F)
O O O O
C C( F F
O O O O
C C( F F)
10  1.0Nm
ABS (V0 optional)
Terminal Hardware Torque
Container Material
M8 Female with adapter offering an M6 Male connection at the front(M8 optional)
O O
Constant Current Discharge Characteristics   Units: Amperes (25 C, 77 F)
O O
Discharge Data with Constant Power    UnitsWatts per cell (25 C, 77 F)
Copyright Narada Power Source Co.,Ltd.                                                                          www.naradabattery.com
Model: 
MP SERIES
stored energy solutions for a demanding world
6-GFM-170F
 Discharge Current VS. Discharge Voltage Charging Procedures
Charge Voltage (V/Cell)
Standby           25              2.25       2.23~2.27
O
C
Cycle                25             2.40      2.35~2.40
O
C 
Application   Temperature
Set 
Point
Max. 
Charge 
Current
Allowable 
Range
Di schar ge
Current (A)
0.2C(A)  0.2C<(A)<0.5C   0.5C<(A)<1.0C  (A)>1.0C
0.25C
Final 
Discharge
Voltage 
V/Cell
 
O O
Terminal Voltage(V) Vs. Discharge Time (25 C, 77 F)
Relationship of OCV Vs. State of Charge Capacity Retention Characteristic
1CA
0.6CA
0.25CA
0.1CA
0.05CA
D
i
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c
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a
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e
 
V
o
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t
a
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e
(
V
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Min h
13.5
13.0
12.5
12.0
11.5
11.0
Remained Capacity(%)
O
C
V
 
(
V
)
10 20 30 40 50 60 70 80 90 100 0
C
a
p
a
c
i
t
y
(
%
)
Storage  Time(month)
0       2       6     12     30     60      3      10     20  
13
12
11
10
9
8
3 6 9 12 15 18 21 24 27
50
25
75
O O
30 C(86 F)
O O
20 C(68 F)
O O
40 C(104 F)
O O
10 C(50 F)
100
Battery Voltage Vs  Charge Time  .
Charge Characteristic
Charge 
Capacity
Charge 
Voltage
100%Charge
50%Charge
Charge 
Current
Time(hour)
Constant Charge At 0.20CA-14.1V(25) (CA) (V)
C
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 60
40
0.15
100
  80
0
14
120
13
12
11
0        2       4        6        8       10      12
1.80              1.70                     1.55                1.30  
NARADA  ASIA PACIFIC PTE.LTD.
65 Ubi Crescent  Hola centre, Singapore
Tel: +65-6848 1191 Fax: +65-6749 3498
E-mail: sales@narada.com.sg
#07-05 
NARADA EUROPE (UK) LIMITED
Spectrum House, Dunstable Road, Redbourn, 
St. Albans, Herts AL3 7PR
Tel: +44 (0)845 371 7095  Fax:+44 (0)845 612 2031 
E-mail: sales@naradaeurope.com
NARADA POWER SOURCE CO.,LTD.
9F, Building A, No. 50 Zijinghua Road, Hangzhou, China
Tel:+86-571-28827013          Fax:+86-571-28828290 
Website:www.naradabattery.com   E-mail: intl@narada.biz
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