I’ve got three leisure batteries which I charge for 45 minutes to and 1hr each day using a 40 amp charger and generator. My power consumption is very low. X10 12 volt led lights, inverter for tv 2 hours per day, charging phone and internet dongle. I’ve not got a fridge. I charge my batteries up until 14.7 volts. I’ve noticed that my boat has gradually getting been getting darker in the evenings. All the connections seem good. Is it time to replace the batteries? I bought a 12 volt light that has an internal battery for a bit of extra light but it’s a horrid bright white light which doesn’t seem natural. Any recommendations for rechargeable lights that are natural?