If you got on the conservative side 2000 cycles out of them and fished three days a week they should last 13 years or theoretically you could fish twice a week for nearly 18 years.
If you got on the conservative side 2000 cycles out of them and fished three days a week they should last 13 years or theoretically you could fish twice a week for nearly 18 years.
2021 Skeeter ZX150
2020 Sea Doo GTI se 170
I think the specs said it was the equivalent to a group 24. If you want the equivalent to a group 31 its a huge price jump from the $369 quoted for this one. Also why to you keep your batteries under the console? Mine are in the rear battery/spare prop/bilge pump storage area in the back of the boat.
Another added bonus to lithium batteries is your voltage stays constant throughout the day. No more upping the trolling motor power just to stay at the same speed. They don't really drop in voltage until they are down to 10-20% (meaningful drop, there is a very slight amount). That is also an issue to some, as your current lead acid battery meters won't work anymore.
2020 Triton 206 Allure
Mercury 250 Pro XS 4S Serial # 2B642047
Bravo XS 22p @ 4.5" PTP
Minn-Kota Terrova 112 w/ IPilot
Lowrance Ti2 12" Console
Lowrance Ti2 9" Bow
Lowrance Point 1
Standard Horizon GX2350S
Shakespeare QC-8 Antenna
Trying to learn something here. So the lithiums basically last based on the amount of charging cycles and the age of the battery is really not a factor? If that is the case then they definitely would be cheaper than say installing the best wet cell or AGM battery out there on the market today.
2020 Triton 206 Allure
Mercury 250 Pro XS 4S Serial # 2B642047
Bravo XS 22p @ 4.5" PTP
Minn-Kota Terrova 112 w/ IPilot
Lowrance Ti2 12" Console
Lowrance Ti2 9" Bow
Lowrance Point 1
Standard Horizon GX2350S
Shakespeare QC-8 Antenna
From my research a charge cycle doesn't even count above 80% or something like that. I charge my batteries every two trips sometimes 3. I did the math and technical at this rate my batteries should last 25 yrs... now saying that if I can get 8 years out of them I'll be happy. Lead acids only lasted me 2 seasons, and up my way that's $300 for a pair of everstart 31's. the lithiums are still more money over the same time, however, the added benefits are worth it. I was in the same opinion 3 years ago when they first started to show up. Price has come down so I did some research and picked up a set. Just unreal !
Some Prices have dropped since I put that list together
There is an age factor but LiFePO4 batteries haven't been around long enough to get a hard #. Some mfrs put it at 10 years but, I think it is mostly a SWAG. They consider the batteries "worn out" when they only have 80% capacity left. 100 Ah down to 80 Ah. Still beats out lead acid by bunches.
This link is a great article. Not long and not too technical about LiFePO4 batteries. Answers a lot of questions: https://www.solacity.com/how-to-keep...tteries-happy/
Last edited by bobcoy; 11-29-2020 at 10:23 AM.
Tell me where has a slow movin' once quick draw outlaw got to go
That 80% capacity is after 2000-4000 cycles depending on the manufacture. That is a TON of cycles. The way most fishermen use their batteries, getting charged after every use, they never put a complete cycle on their battery. If manufacture claims hold true these batteries should last 10-20 years if you fished them EVERYDAY, and then you would still have 80% capacity to keep on chugging along...
I have noticed the prices are dropping. I am guessing there will be more companies in the market within a year and prices will vary maybe cheaper.
I just purchased three Amped Outdoors 12v 60Ah lithiums primarily because I didn't have room for a three regular trolling motor batteries in the back of the boat. Yes, they're supposed to last 2000 to 5000 cycles but if you don't use them every day, I don't think you'll ever get close to those numbers. Lithiums haven't been around long enough to know if they'll really last 10, 15 or 20 years. I can't imagine having these batteries 15 years later but my Optima AGM Series 31 starting battery was 10 years old in May/20 so I guess any thing is possible.
Keep in mind, the 80% limitation on the lithium is a hard limitation. Once one of the lithiums drop to 20% SOC, the trolling motor is done for the day. On the lead acids, once one drops to 50% SOC, you still have 50% capacity to continue fishing should you choose to. I would consider $700 for two lithium batteries if I thought they would get me through all my fishing days. I don't think two 60ah lithiums will do that and two 100ah is just too expensive.
D-Dubya
2003 Skeeter ZX225
Yamaha VZ225HPDI
Humminbird 898c SI
Hummingbird 858c DI
are 3 50ah batteries big enough to run a 112 36volt system? I currently run 3 group 27 agm
Most lithium batteries are rated at 2000 cycles at 100%dod. 80% would be 3 to 4000 cycles. There are other factors that age lithium batteries. High temps will shorten their lives. There are other things to go along with that. A full charge cycle on a lithium 0 charged to 100%. Partial cycles are just that. On lead acid batteries get to 50%dod the voltage will start dropping below 12 volts. Much lower than that and electronics start having issues. To get the full 100% from the lead acid you would be less than 10 volts and will damage the battery and weaken and shorten its useful life. Lithium has over 12 volts to about 95 percent or more dod
Tell me where has a slow movin' once quick draw outlaw got to go
Thought I would add a reference for Lithium batteries we use for boats. LiFeP04 batteries :https://www.solacity.com/how-to-keep...tteries-happy/
Tell me where has a slow movin' once quick draw outlaw got to go
I have always ran 24 v trollers never needed a 36 v trolling motor . I have been bass fishing tournaments for 38 years 10- 12 tournaments a year all over the place . Currently running a 20 ft bass boat with a lowrance ghost . I put two 12/50 ah battery’s in it last spring . Fishing all day hard I can only lose about 20-30% of the battery’s capacity . I have fished a day and half with no charge and still was above 50% . The biggest mistake guys have with a 24 v system is running to small of wiring from the battery’s to the trolling motor . My best Friend that I travel with has the same boat and same set up 0 issues fish all day on two 12/50 lithium batteries.