Planning on upgrading/replacing some relatively old/tired batteries in my RC Baitboat i use for carp fishing/baiting up.
My boat has twin props, each powered by 2 x 7.4v li-ions, 1 x 12v lead acid for a Raymarine Sonar, 1 x 12v lead acid for
a wifi range extender, and 1 x 6v lead acid for a underwater camera winch system. Need to replace all the lead acids, which would reduce total weight drastically. Got acouple of hundred harvested 18650s that i can use, for something atleast. Will be buying new LifePos if necessary, if all else fails.
I understand the issue with 18650s and 12v setups, BUT, as i have loads of 18650s, wouldnt it be possible to overgun
a 4s buck down, for the 12v pack for the Sonar unit, which has the following power specs :-
Nominal Supply Voltage : 12vdc
Operating Voltage Range : 10.8v - 15.6v
Power Consumption at full brightness : 2.7w RMS
What about a 4s(6-10)p + buck down to 13v, balance charged to 4.0v max/3.0v min(16v/12v) ? Dont really need to
utilise the full capacity of the pack/each cell, so can overgun total capacity to compensate. I totally understand that LifePos ARE the easiest/most reliable solution, but we are talking about afew watts here, for the Sonar, and 5w max for the Wifi range extender amplifier unit.No powerwall specs required
My boat has twin props, each powered by 2 x 7.4v li-ions, 1 x 12v lead acid for a Raymarine Sonar, 1 x 12v lead acid for
a wifi range extender, and 1 x 6v lead acid for a underwater camera winch system. Need to replace all the lead acids, which would reduce total weight drastically. Got acouple of hundred harvested 18650s that i can use, for something atleast. Will be buying new LifePos if necessary, if all else fails.
I understand the issue with 18650s and 12v setups, BUT, as i have loads of 18650s, wouldnt it be possible to overgun
a 4s buck down, for the 12v pack for the Sonar unit, which has the following power specs :-
Nominal Supply Voltage : 12vdc
Operating Voltage Range : 10.8v - 15.6v
Power Consumption at full brightness : 2.7w RMS
What about a 4s(6-10)p + buck down to 13v, balance charged to 4.0v max/3.0v min(16v/12v) ? Dont really need to
utilise the full capacity of the pack/each cell, so can overgun total capacity to compensate. I totally understand that LifePos ARE the easiest/most reliable solution, but we are talking about afew watts here, for the Sonar, and 5w max for the Wifi range extender amplifier unit.No powerwall specs required