cyhohk

Hello, could someone had this experience. One day I used my DX7S flying in normal condition. I changed the battery from 4.8v Nimh to 6.4v LiFe and worked normally. However, I forgot to switch it off for more than a week until last night I took it out. OMG, the radio had no response at all even I changed a new pack of battery. Switch but not on. Could any of you had such experience before and how to fix it?

thank you

CY

All Day Dan

My Feedback: (5)

Send an e-mail to Spectrum. Frying a transmitter with a high voltage battery is common. Dan.

rgburrill

I assme you are talking aobut the receiver battery since the transmitter battery pack is 9.6 VDC. What receiver are you using?

cyhohk

hello Dan, thank you for your reply. I just plug in 6.4v to the transmitter has been working for several weeks without problem until I forgot to switch off after the last flight. So I think it's not matter of high volt. I have contacted Specktrum about this.

cy

cyhohk

hello,
i meant transmitter had problem because I forgot to switch off after last flight over weeks.

AndyKunz

The DX7S uses a 4-cell NiMH pack, not an 8-cell. You must be thinking of the original DX7.

It sounds like the issue is that the battery pack itself is damaged. This is to be expected if you over-drain it. When you put it on the power supply to charge, does the blue LED start glowing? If not, that means the pack isn't charging. It's kaput. Get a new pack, or put the old NiMH back in and test it.

Andy

cyhohk

Hello friends, my DX7S is finally fixed. Thank you for all of you paid attention to my problem. The problem of my radio comes from the SD card. It has been taken away then the radio comes to normal now.

thank you for all your help!