Not getting a full charge

[suppermansteve]

I have a 48 volt 2002 Club car in really good condition. It has new 6 batteries and a new Power drive 2 charger. All 6 batteries were checked with a load tester and a hydrometer. Good cables and connections. They are perfect. The charger was verified by plugging it into another cart and works perfectly started around 10 amps and went down to 0 over night. When I plug the charger into mine, the amps start around 7,8 and the charger shuts off after about 5 minutes. The charge light on the dash is putting out a code that comes on for 6 seconds and shuts off for 6 seconds. It does that twice then the light is on for about 54 seconds.

On 54 sec
Off 6 sec
On 6 sec
Off 6 sec
On 6 sec
Off 6 sec
On 54 sec