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I'm doing my engine starting battery too, but even bigger, 150Ah for headroom and fish finders. I'm doing it! I'm ordering cells from China here real soon. ![]() Do not draw them down below 2.5v per cell. This battery indicator is specifically designed for battery powered equipment to monitor the charge status of the batteries charge. Don't store them at 100%, store them at 50% AND disconnect them so they don't get accidentally drawn below 2.5v per cell. Never let your electric motor run out of power again. If you build 100Ah lifepo batteries, you'll be able to fish a couple big days no prob without charging, from what guys say.Īs you probably already know, LifePO4 can last you over 10 years if you're careful. The same Garmin can be set to run at 24v or 36v, and 75Ah should be fine for long days fishing and which ever voltage I run. I'm overshooting and making 3 12v 75Ah batteries for the 36v trolling motor, but I may also switch to a 24v Garmin Force because its brushless motor is both more powerful and way more efficient than the Minn Kota armature. The extra capacity of 200Ah gives you longer runtime and peace of mind. This will make your trolling motor draw more amps and reduce your time on the water. That being said, it's best to NOT kill your lithium batteries every day either if you want them to last 10 years work with an operating range from 80% to 40% and they could outlive you. 200Ah batteries are recommended for heavier boats and those fishing in windy conditions. Guys on bbcboard bass boat forums are doing exactly that, repl group 27 FLA's with 50Ah Lifepo's and getting BETTER runtime. If 3 group 27's have been fine for you, then three 12v 50Ah LifePO4 packs will be fine because unlike FLA, you can use 100% of it's storage. #Dyi simple battery monitor for trolling motor battery Bluetooth#You can buy 4 new or used 3.2v LifePO4 cells and put them in series, get the 100a smart BMS Will recommended with bluetooth smartphone app for quick monitoring and do WAY better than FLA for hardly any more $$ and get 4x the life!Ī 12v group 27 FLA battery may have a capacity of, say 80Ah, BUT, with FLA tech if you pull it down below 50%, voltage drops so low your t/m will barely run, AND it kills them real quick, as you've been doing. Easier to buy a 3 or 4 bank Lithium charger that way too and you can charge or jump start your dead crank battery for a sec from one of those 12v t/m batteries. Buy CAMWAY Battery Monitor 8-120V 0-500A Voltmeter Ammeter Voltage Current Meter Backlight Waterproof Auto Car Motor Boat Caravan RV Motorhome Golf Cart. Also available with on-board charging connections. #Dyi simple battery monitor for trolling motor battery series#Add on to any two 12V batteries to easily connect them in series to create a 24V battery. I'm planning on making 3 12v batteries to replace the group 27 FLA batteries and connecting them in SERIES, Lol. (6 reviews) Connect-Ease trolling motor connection kits makes it easy for you to connect, disconnect, store and charge your Dakota Lithium deep cycle batteries. The easy 54a low draw of that trolling motor is no problem. They're simple to manage, connect and fix. I've to design a circuit which will detect and indicate the voltage o/p by colored LED lamps. the output from a transformer is 6V, 12V, 24V resp., depending on the supplied input. I suggest you keep it real simple and stay with LifePO4 tech, and build 12v batteries with 4 large square prismatic cells. basically its a battery voltage detector cum indicator circuit. ![]() Stay on top of your batteries without having to open a locker or dig through the engine compartment with a convenient remote battery bank status monitor from ProMariner.Keep it simple man! I'm doing the exact same thing as you, DIY stringing together lithium battery packs to run a 36v Minn Kota trolling motor on my bass boat. ![]() The best strategy is to throttle the motor at 80 percent or less of max-speed. Running the motor at top speed will quickly deplete the battery. Compatible with up to 3 banks, this compact, flush mounted display uses simple to read LED indicators to show battery levels and if a bank is currently being charged. Without any effort, a trolling motor will push a kayak at six to 10 miles per hour into a headwind and opposing current. This easy to ready display connects directly battery banks to provide valuable information. ProMariner offers a solution with a remote battery bank monitor. Some battery chargers feature displays to indicate battery levels and the various charging states of your batteries, but because they are often built into the charger and located in lockers, they are not easy to ready. Add convenience to your boat’s charging system. ![]()
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