Never throw away those Heng Long batteries
Posted: Wed Aug 10, 2016 5:47 pm
My electric drill Nicads finally decided not to hold a charge, and it was either buy new ones, or a new drill. Both options were expensive as I rarely use it. I then had a thought, two 7.2v Nimh batteries = 14.4v?
I pulled off the old Nicad unit, took the drill apart, and soldered a Tamiya connector onto the terminals inside the handle.
Then I soldered two Nimh batteries together in serial.
Plugged it in and it works.
I will make a neater job of it one day.
Only snag now is, can I charge a 14.4v battery pack from a 7.2v charger??
I pulled off the old Nicad unit, took the drill apart, and soldered a Tamiya connector onto the terminals inside the handle.
Then I soldered two Nimh batteries together in serial.
Plugged it in and it works.



I will make a neater job of it one day.
Only snag now is, can I charge a 14.4v battery pack from a 7.2v charger??