I have a 14S18P battery pack that I am using to power an outboard motor. I have a thread about it here
https://secondlifestorage.com/t-ideas-for-a-portable-battery-pack-and-inverter
What I want to do is add a Bimini top to the boat, and put solar on that to charge while we are fishing.
I bought 3 ofthese flexible solar panels. They should put out 18v x 3 = 54v so it wouldn't overcharge a 14S pack, which would be 56V fully charged. The idea is to just top up the battery while we are out on the lake. The panels would be dissconnected at the end of the day so it would not be left charging unsupervised.
I imagine the use would go like this. Head out in the morning with a fully charged battery (56V). As soon as it falls to 54v the solar starts charging and will keep it floating aroud 54v. End of the day we would still have an almost fully charged battery to go back with.
https://www.ebay.ca/itm/Mono-20V-10...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
I know solar better than I know lithium batteries. I know that these panels will only put out 100 watts under ideal conditions,but the voltage will stay at around 54v, and the amps will rise and fall.
Will this harm the batteries?
The reason I dont want to use a charge controller are many.
I will only use the boat a days a year so I want to keep things simple.
Setting up the boat is a pain so I dont want to add more complexity.
If I order more equipment my wife will make me sleep on the couch if im lucky.
https://secondlifestorage.com/t-ideas-for-a-portable-battery-pack-and-inverter
What I want to do is add a Bimini top to the boat, and put solar on that to charge while we are fishing.
I bought 3 ofthese flexible solar panels. They should put out 18v x 3 = 54v so it wouldn't overcharge a 14S pack, which would be 56V fully charged. The idea is to just top up the battery while we are out on the lake. The panels would be dissconnected at the end of the day so it would not be left charging unsupervised.
I imagine the use would go like this. Head out in the morning with a fully charged battery (56V). As soon as it falls to 54v the solar starts charging and will keep it floating aroud 54v. End of the day we would still have an almost fully charged battery to go back with.
https://www.ebay.ca/itm/Mono-20V-10...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
I know solar better than I know lithium batteries. I know that these panels will only put out 100 watts under ideal conditions,but the voltage will stay at around 54v, and the amps will rise and fall.
Will this harm the batteries?
The reason I dont want to use a charge controller are many.
I will only use the boat a days a year so I want to keep things simple.
Setting up the boat is a pain so I dont want to add more complexity.
If I order more equipment my wife will make me sleep on the couch if im lucky.