I got a signal the battery was low, and now after charging my phone doesn´t start again??

Refer to the instructions that came with charger. If you threw them away you have a problem You can go on line and download instructions.
Low Charge Alert (LCA)
On the front of the unit there is a Low Charge Alert port. There is a red plug in this port. With the plug
removed, when the battery level drops to LO, an alarm will sound to remind the user to recharge the
Jump-Starter.
The alarm can be turned off one of three ways:
•
Placing the pin back into the Low Charge Alert port
•
Recharging the battery immediately to bring it to the capacity of 10% or more
•
Pressing the battery indicator display button. If the alarm is turned off by pressing the battery
display button, the alarm will sound automatically again in approximately 1 hour.
The alarm will only be turned off permanently if the battery is in a fully charged state, or the pin is
inserted in the Low Charge Alert port. There is a storage port on the back of the Jump-Starter for the
LCA plug. When the plug is removed from the LCA port, it should be installed in the storage port on the
back of the Jump-Starter.
Charging Jump-Starter Battery
All rechargeable batteries gradually discharge when left idle, and you need to recharge them
periodically to maintain maximum battery capacity. The AC charger plug within the Jump-Starter is
designed to charge using a 110/120-volt outlet.
•
Fully charge unit to the recommended maximum and initial charge time of 24 hours. Thereafter, an
AC typical charge time is 8 to 12 hours.
•
Recharge the unit fully after each use. This will prolong the life of the battery because frequent
discharges between recharges will reduce battery life.
•
Make sure all functions of the Jump-Starter are turned off during recharging

Check the batteries voltage and check to see if the battery is being supplied charge voltage when the computer is off. If both these are good then your low battery message is in error. No charge voltage would mean faulty charger and low battery voltage would mean faulty battery.

j700v low battre

First Option:
mostly nokia chargers doesn't make problems...
just try the following..
connect ur mobile with a system (usb cable)...
found out whether it is charging or not...
if the same prblm appears then there is a prblm in ur cell phone or power jack(socket)...
if it charged with usb cable buy a new charger
Please change Phone Bettery and check the charging
IF Charging Problem not Solved So


Second Option:
Your Phone charging IC Fault So Please change charging IC
And charging Problem will Solved Quickly

Hi this is normal for all BLACKBERRYS. What happens is the radio signal goes off. Charge your battery. Once you have a full charge on the phone take the battery out and rub the barcode where the sound strip is. Then putt the battery back in this should help solve that problem for you. Also don't let your bb get in the red to often it has an adverse affect on the phone. BB run on radio signals.

I’m happy to help further over the phone at https://www.6ya.com/expert/ronald_e152e07e272e4f27

check if ur battery has swollen...this happens due to repetive over charging...d capacitors burn out...if tats d case...replace ur battery immediately..since d old 1 has chances of bursting...

if thats not d case thn try another battery,,,prob persists thn itz a s/w error goto a nokia care...they'll do it 4 free

A simple reboot of the phone can resolve this problem. Failing that a complete resync with iTunes does the trick too.

buy a new battery

your battery might need to be changed. even if it has a full charger it might not be able to properly charge you phone.
try a new battery.

You are pretty close to the solution. The problem is the charge detection in the handset. All handsets on a cordless phone detect the battery level with an hexadecimal value in the memory. Each hex value equal a volt value of the battery. EX: 3.5v = 9B
3.6v = 9C 3.7v =9D etc... The problem is the hex value in your defective handset are all mess up. So 9B is not 3.5v anymore. Then your handset could last 1hr after foul charge or doesn't alert you before the phone goes dead due to low BAtt.