I have the older Sok battery without bluetooth or warmer. When connected to the Zamp charge controller the battery tops out at 13.4V, which is Float charging"full" for LiFePO4 according to the Zamp manual. But the Sok manual says full on these batteries is 14.4 -14.6V. Am I missing out on charge on this battery by using this charge controller? What if I charge through the AC converter instead?