any None. Built in I/C Chip Prevents Over Charging and Over Heating. Will not Over Charge your Battery and Will Not Cause Fires. ONLY trust your phone with OEM ORIGINAL Nextel accessories! Genuine Nextel Cradle. We will guarantee that these desktop cradles are NEW, never used. If there should be any issues upon receipt or for the next 14 days, we will replace it - NO QUESTIONS ASKED! Model #: NNTN2073 Compatible Brands: Motorola Compatible with: Nextel i560 , i760 , i830 , i833 , i836 , i850 , i855 , i860 , i870 , i920 , i930 Boost Mobile i830 , i530 , i860 , i875 , i920 , i930 Phones when used with Required Battery Insert Trays Sold Separately Condition: New Items included: Cradle Items Not Included: Travel Charger  (less)

extra long cord (13 ) provide rapid charge and feature rugged housing with rubber non slip over mold. Simply plug your Motorola Vehicle Battery Charger into your car s vehicle power...  (less)

Trusted quality of an Original Genuine Motorola Nextel vehicle charger. Charges battery when phone is not in use Intelligent IC chip inside recognizes a full battery and...  (less)

utilize their phone without having to worry about charging often. May require an extended battery door due to increased size of the battery. (Battery door included) Additional power allows for longer usage and talk times Makes charging phone a little less worrisome MAH: 950 Compatible with: Motorola I830 Boost Mobile, Southern LINC, Sprint, Nextel  (less)

and a sturdy belt clip Screen Guard: Protect LCD screen from scratching, scraping and abrasion Vehicle Phone Holder: Air vent mount holder with adjustable arm  (less)

lightweight for convenient portability and storage. The folding blades and integrated cord management allow this lightweight charger to become even more convenient for travel. Provides...  (less)