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7. OPTIONS 
The following options are available to make the best 
use of the JHS-7. 
 
7.1  Battery Charger NBA-4141/NBA-4141A 
The battery charger is used to charge the battery 
pack. The charging is possible with or without the 
radiotelephone mounted on the pack. The battery 
charger can be fixed to a desk top or a wall. 
Attachments: Fuse(0.5a, 5.2×20L)  ×
1, crimp style terminal 
(R1 25-3)  ×3, wood 
screw×4 
Power supply voltage:  100/120/220/240V AC 
selected using a tap 
(standard: 100V AC) 
Input Frequency:  50Hz~60Hz 
Applicable battery pack:  NBB-248/248A 
Charging time:  Not more than 3 hours 
Charging current:  Quick 530mA
15%
10%
 
 Trickle 25mA±20% 
Overall dimensions:  210(W)×100(H)×105(D) 
Weight: Approx. 1.5kg 
 Operating Temperature:   -10 ~ +50℃ 
7.2  Primary Battery Pack NBB-389 
Battery  Lithium-Manganese 
 Dioxide Battery 
Capacity 9.0V, 4800mAH 
Dimensions: 62(W) ×65(H)  ×55(D) 
Weight: Approx. 220g 
 
7.3 Battery Pack NBB-248 
Battery: Ni-Cd battery 
Capacity 7.2V, 1000mAH 
Dimensions: 62(W) ×54(H)  ×41(D) 
Weight: Approx. 200g 
 
7.4 Battery Pack NBB-248A 
Battery: Ni-MH battery 
Capacity 7.2V, 1000mAH 
Dimensions: 62(W) ×54(H)  ×41(D) 
Weight: Approx. 200g 
 
7.5 Earphone 6UMJD00004 
The earphone is helpful when voices from the 
speaker are not clear due to noisy surroundings. 
Impedance: 8Ω 
Cable length:  1m 
Weight: Approx. 20g 
 
7.6  External Speaker/Microphone 6UMJD00029 
The external speaker/microphone is helpful when 
the radiotelephone is carried around one’s waist. 
Microphone sensitivity:  -66dB±4dB at 
1kHz(0dB=1V/μbar) 
Speaker output:  0.5W(8Ω) 
Cable Curled cord 
Overall dimensions:  64(W)×94(H)×35(D) 
Weight: Approx. 280g 
 
7.7  Carrying Case MPXP02368 
The carrying case protects the surface of the 
radiotelephone against damage.