^^^^ Agree with Loop&Roll.
Set charge rate at 1amp, try peak sensitivity of 5mv and set peak delay for at least 5min. If you're using a low peak settingand not using peak delay they're prob false peaking.
The tx may have a diode that limits the charge rate to some low value, maybe less than 100ma. Try using the rate the tx charger charges at. If it works, there's a diode inside that limits the charge rate. Tx manual may have some detail.