trigger
Specialist Contributor
- Joined
- Nov 28, 2004
- Messages
- 682
- Reaction score
- 54
- Points
- 28
- Age
- 54
- Location
- Puerto del Carmen, Lanzarote
- My Satellite Setup
-
30W, 27.5W, 7W, 0.1W
4.8E, 9E, 13E, 19E, 23.5E, 26E, 28E
Technomate 5402HD super
Bein Sports on 25.5E
FTE Mini S2T HD Analyser
Horizon HD S2 sat meter
- My Location
- Lanzarote, Canary Islands
Just thought I would share some info about how we resurrected one of my batteries for this drill today.
The fault was with a 3.0ah 24V battery. This battery has a 5 led system that shows the charge level of the battery. Over time the battery has retained a memory and would only charge to 3 lights then 2 until finally when putting it in the charger the charger would show a red light and not charge at all.
We took the unit apart and found 3 of the 10 cells showing no charge being held. We awakened these cells by quickly applying 4 volts to the battery the wrong way around about 4 or 5 times. Then using a separate power supply we noted that these cells were taking and holding a charge. We placed the unit back on the charger but it still showed red light and would not charge.
We then put two 12 Volt halogen lamps in series onto the battery and totally flattened it. We tried again in the charger but again the red light problem.
We then charged the battery using a separate power supply at about 34v and initially 3.4 amp (this falls steadily as the battery charges and got to about 0.68amps). The original charger supplies 43V. The power supply charged the battery fully to 5 lights in about 40 minutes - the original when new would take about 15 mins . When the 5th light came on we put it back in the correct charger and it charged for a further 5 minutes or so before beeping to say fully charged (no red light fault).
I now have a fully charged working battery.
I will report again about how it recharges etc in the future.
Hopefully this may help someone
Cheers Triggs
The fault was with a 3.0ah 24V battery. This battery has a 5 led system that shows the charge level of the battery. Over time the battery has retained a memory and would only charge to 3 lights then 2 until finally when putting it in the charger the charger would show a red light and not charge at all.
We took the unit apart and found 3 of the 10 cells showing no charge being held. We awakened these cells by quickly applying 4 volts to the battery the wrong way around about 4 or 5 times. Then using a separate power supply we noted that these cells were taking and holding a charge. We placed the unit back on the charger but it still showed red light and would not charge.
We then put two 12 Volt halogen lamps in series onto the battery and totally flattened it. We tried again in the charger but again the red light problem.
We then charged the battery using a separate power supply at about 34v and initially 3.4 amp (this falls steadily as the battery charges and got to about 0.68amps). The original charger supplies 43V. The power supply charged the battery fully to 5 lights in about 40 minutes - the original when new would take about 15 mins . When the 5th light came on we put it back in the correct charger and it charged for a further 5 minutes or so before beeping to say fully charged (no red light fault).
I now have a fully charged working battery.
I will report again about how it recharges etc in the future.
Hopefully this may help someone
Cheers Triggs
