Power question i425
Posted: Tue Dec 01, 2009 8:09 am
I have a Motorola i425 that I'm using for my Accutracking. I'm pretty pleased so far except for battery performance. My uses require that I not have the phone wired to the car for power and I very much prefer the one minute refresh. The factory battery for the phone only lasts 12 to 14 hours because of this.
I would like to remove the phone's battery and attach a pair of TR18650 rechargeable lithium batteries in its place. They are each rated at 3.7 volts (the same as the phone's battery) and will be wired in parallel, not series, in order maintain that voltage. The 18650s are 2500 mAh each compared to the 930mAh of the Moto battery so I'm hoping to extract several days useage with this method. I will not be using the phone to charge them, I will pull them out each time and use their own specific charger. I don't know what the two extra pins under the battery contact are for, though. I'm guessing they receive some sort of sensor feedback for the phone to evaluate the battery. Does anyone know if the phone will run if I simply provide ~3.6 volts to the + and - terminals and disregard the extra two pins?
Thanks in advance.
-Brandon
I would like to remove the phone's battery and attach a pair of TR18650 rechargeable lithium batteries in its place. They are each rated at 3.7 volts (the same as the phone's battery) and will be wired in parallel, not series, in order maintain that voltage. The 18650s are 2500 mAh each compared to the 930mAh of the Moto battery so I'm hoping to extract several days useage with this method. I will not be using the phone to charge them, I will pull them out each time and use their own specific charger. I don't know what the two extra pins under the battery contact are for, though. I'm guessing they receive some sort of sensor feedback for the phone to evaluate the battery. Does anyone know if the phone will run if I simply provide ~3.6 volts to the + and - terminals and disregard the extra two pins?
Thanks in advance.
-Brandon