john volkman
5 year old buck +
you will save money in the long run utilizing either a solar panel or the 6 d booster , if you are just trying to run the cameras on the 4d internals you will not be happy, the 4 d internal is basically designed to be back up power to the external source. you will get more battery life out of each individual battery by running the booster since it runs 6 in sequence, effectively saving you enough money to pay for the external over a short period of time.I have several cameras that started doing this. My cell cam went from forty some odd days to 11 days and my non cell cams went from 50 days down to maybe 25. I have one non cell on an external six pack battery pack and it has done ok. Battery costs are higher than monthly cell bills on a lot of cameras. I may check my locations with some new texting cams and if they work, just go back with them instead of upgrading the cuddelink system