I purchased 2 Trojan T 105 6 volt for my PU to power the lights and 1500w Samlex inverter. After reading the spec sheet I found that they will only charge to 80%. Accordingly, it states that they won't reach full capacity (100%) till 50 charge cycles. Then I've read they should not be taken below 80% when using. My next trip is for 3 weeks with some time (8 days) dry. I will have a 2800w genny for use an charging them back up. So I'll need them, mostly at night not a lot to power. My questions are, 1. Is it feasible to expect decent use for the time I'll be using them with the 80%? 2. Should I start cycling them now? I can use a 40 amp trolling motor to draw them down, then charge them back up? I know this will take time. Is it worth it? 3. Has anyone been in this situation? As always I respect and appreciate everyone's reply. The fact that we're new to PU camping with batteries and an inverter. We just want to do it correctly and safely. Thanks!