I looked into the battery issue throughly before I bought the new 220ma batteries. You should be fine putting the higher amperage batteries on the lower amperage chargers they will just take longer to reach max charge. Here is what HealthCabin says.
"Heads up about charging 510 T batteries:
*510 T battery’s Cut-Off time: 5-6 seconds.It can be used again when flashing is over.
*When the LED on 510 T battery flashes 10 times, it indicates that the battery needs charging.
*510 T battery can be charged with exclusive 510 T USB Adapters for 510 T battery, 510 USB chargers, eGo USB chargers, 510 wall chargers, 510 10 part chargers and Joye 510 PCC.
*The LED on 510 T battery will turn on while being charged by 510 T USB adapters. If the led does not turn on while charging, it indicates that the battery does not need to be charged.
*While being charged by other chargers, the led on 510 T battery won’t turn on, but the led on other chargers will turn on red. When 510 T batteries are fully charged, the led on other chargers will turn red into green.
*Please do not charge 510 batteries or eGo batteries with 510 T USB adapters."
Bottom line: 510T + 510 chargers = OK 510 + 510T chargers = Bad