p4p battery

Hi. Hereford UK. Will need at least one spare battery for the P4p so has anyone advice on a good source in the UK? I understand the P4 battery will work fine is that right even though it might not fly as long. Thanks Nick

#PH4-5350mAh-15.2V I tried to charge my spare battery today and it won’t seem to charge. When I plug the battery in, it senses the charger and all four lights come on as normal (all green). Then the first battery light starts to blink quickly before shutting off. When I try to power on the...

Does anyone know what it means when a P4P battery (orig equip) has the button lit with just the line-light NEXT TO the button flashing at 3-flash increments?? I am getting this when I plug it into my Venom P4 Professional charger. The battery is at less than 50 percent. I plug it in, the...