New batteries, low voltage

[jdunmyer]

My cart is a 2013 RXV, bought new, came with a charger (QE?), plus I bought an Accu-Sense unit. Original batteries were about used up, so...

Not wanting to handle those heavy batteries, I took the cart to an EZ-Go dealer, not the one I bought it from, as he is 250 miles away. Got it back the next day, and the DVM on the dash (from ScottyB) showed 'low', and the OEM 'fuel gauge' also showed 'not full'. Charged it with the QE charger, went to use it a couple of days later and found the voltage 'low' again, something like 50.0 volts.

Charged it with the A-S unit, only to find the voltage 'low' the next day. Checked the batteries and found them to be about 12.25 volts, +/- about .03 volts.

Did some brief checks and found that the charger pushes the voltage to 57 or more, then shuts off after a short while. Within an hour or 2, the voltage has dropped to 50.0.

These are brand-new Crown batteries.

What gives?