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life time calculation of a rechargeable battery, powered by solar energy harvester

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I am using a rechargeable NiMH battery (300mAh,4.8V) to supply the WSN mote. The battery gets an average energy of 300J per day from a solar cell. Assuming that the mote consumes 0.163928mAh per day. Can anyone please say me the life of the mote and how to calculate it?
 

jeevi_h said:
I am using a rechargeable NiMH battery (300mAh,4.8V) to supply the WSN mote. The battery gets an average energy of 300J per day from a solar cell. Assuming that the mote consumes 0.163928mAh per day. Can anyone please say me the life of the mote and how to calculate it?
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what is the operational voltage of mote?
If we assume it is 4.8V then ;
300 J = 300 W.s = (300/3600)Wh = 0,8333333 Wh
0.83333333 Wh = 0.163928 mA x4.8 V x t
then t = 1.05906928 h
t= 3812.649 seconds

- - - Updated - - -

Sorry I forget mili amps;
0.8333333 Wh = 0.163928 A x 0.01 x 4.8V x t
then t = 105.90928 h
t = 381264.9 seconds
 

hi mkdir thanks for ur reply.
u have used (available capacity)/(consumption of the mote in mA/hour ). this will be ok for a nonchargeable source
is not necessary to include the possible charge/recharge cycles of the battery,
which will increase the lifetime further.
please clarify....
 

If the 0.163928mAh/d number is right, the system would probably better run from a non-rechargable Lithium battery.

There won't be noticeable discharge of the NiMH battery, self-discharge may be higher than regular load.
 
I certainly agree with FvM..
 

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