FF Battery question (ryobi Lithium Ion?) - Kayak Fishing Adventures on Big Water’s Edge

TJones · 05-17-2020, 05:39 AM

reasonable price. life expectancy of 2000 - 3000 charges / 7-10 years. made specifically for marine application. warranty is good and customer service is exceptional. these battery's are built for marine applications with safety in mind, eliminating the possibility of fire. there is a chart on their web page which recommends a specific battery based on your head unit model and gives estimated hours of operation per charge based on your head units power consumption. these batters are high capacity batteries with a long life. also half the weight of SLA battery. you will need to buy the charger initially.

Harry Hill · 05-17-2020, 06:25 AM

I use the same batteries I use in my rc airplanes 3 cell LiPo batteries, 5 amp usually last me 6 hours and because they are light in weight I carry an extra and change them if I need longer times. It does take a dedicated charger

jruiz · 05-17-2020, 06:52 PM

Many power drills are using lithium iron phosphate chemistry. It's really meant for high power applications. Not saying it won't work, just not optimized for your use case. In addition, I'd be curious to know what your FF is doing with that extra voltage. My guess is that it's going through a voltage regulator, some are efficient others are not(linear).

Harry Hill · 05-17-2020, 08:22 PM

There are big differences in Lithium technology. While Lithium Polymer will charge to 4.7 volts per cell and discharge at a more even rate Lithium Ion charges to 3.3 volts per cell and hold a steady level longer but will fall off rapidly without warning. LiPo drops evenly but cannot be allowed to fall below 3 volts per cell or will be ruined and cannot be recharged. Both take a dedicated charger. Both can be partially discharged and recharged without damaging them and will take over 1000 charge cycles. LiPo is highly volatile and if damaged will burn with a white hot fire, not a good thing on a boat. Probably the type of battery that was on the dive boat. I use LiPo because that is what I own but if I buy another battery for my kayak it will be LiIon.

igotpron · 05-17-2020, 08:28 PM

Quote:

Originally Posted by Harry Hill

There are big differences in Lithium technology. While Lithium Polymer will charge to 4.7 volts per cell and discharge at a more even rate Lithium Ion charges to 3.3 volts per cell and hold a steady level longer but will fall off rapidly without warning. LiPo drops evenly but cannot be allowed to fall below 3 volts per cell or will be ruined and cannot be recharged. Both take a dedicated charger. Both can be partially discharged and recharged without damaging them and will take over 1000 charge cycles. LiPo is highly volatile and if damaged will burn with a white hot fire, not a good thing on a boat. Probably the type of battery that was on the dive boat. I use LiPo because that is what I own but if I buy another battery for my kayak it will be LiIon.

Sooooo. Who’s got a cell phone without a lipo inside? I’m aware of the potential hazards. But the worst that happens is I flood my batteries with salt water. Which happens to be one of the safe ways to discharge the battery down before you destroy it. So worst case is I loose a couple batteries. But that’s only if my kayak floods and my waterproof box floods. And by that point. That’s probably the least of my concerns.

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Harry Hill · 05-17-2020, 08:57 PM

Quote:

Originally Posted by igotpron

Sooooo. Who’s got a cell phone without a lipo inside? I’m aware of the potential hazards. But the worst that happens is I flood my batteries with salt water. Which happens to be one of the safe ways to discharge the battery down before you destroy it. So worst case is I loose a couple batteries. But that’s only if my kayak floods and my waterproof box floods. And by that point. That’s probably the least of my concerns.

Sent from my iPhone using Tapatalk

Your biggest concern is if you damage the battery somehow, then it could have an internal short and explode in flames, which water will not extinguish. Lithium fires need a type D extinguisher to put out. a dead short will also cause a fire or at the very least this will happen

TJones · 05-18-2020, 12:39 AM

Exactly are we looking at? Can’t make it out. A battery that expanded?

05-17-2020, 05:39 AM	#1
TJones Senior Member Join Date: Jan 2012 Posts: 2,526	bioenno power reasonable price. life expectancy of 2000 - 3000 charges / 7-10 years. made specifically for marine application. warranty is good and customer service is exceptional. these battery's are built for marine applications with safety in mind, eliminating the possibility of fire. there is a chart on their web page which recommends a specific battery based on your head unit model and gives estimated hours of operation per charge based on your head units power consumption. these batters are high capacity batteries with a long life. also half the weight of SLA battery. you will need to buy the charger initially.

05-17-2020, 06:25 AM	#2
Harry Hill Senior Member Join Date: Aug 2015 Location: Yucaipa, CA Posts: 1,136	I use the same batteries I use in my rc airplanes 3 cell LiPo batteries, 5 amp usually last me 6 hours and because they are light in weight I carry an extra and change them if I need longer times. It does take a dedicated charger __________________ you can't eat it if you release it

05-17-2020, 08:22 PM	#4
Harry Hill Senior Member Join Date: Aug 2015 Location: Yucaipa, CA Posts: 1,136	There are big differences in Lithium technology. While Lithium Polymer will charge to 4.7 volts per cell and discharge at a more even rate Lithium Ion charges to 3.3 volts per cell and hold a steady level longer but will fall off rapidly without warning. LiPo drops evenly but cannot be allowed to fall below 3 volts per cell or will be ruined and cannot be recharged. Both take a dedicated charger. Both can be partially discharged and recharged without damaging them and will take over 1000 charge cycles. LiPo is highly volatile and if damaged will burn with a white hot fire, not a good thing on a boat. Probably the type of battery that was on the dive boat. I use LiPo because that is what I own but if I buy another battery for my kayak it will be LiIon. __________________ you can't eat it if you release it

05-18-2020, 12:39 AM	#7
TJones Senior Member Join Date: Jan 2012 Posts: 2,526	So what Exactly are we looking at? Can’t make it out. A battery that expanded?

05-17-2020, 06:52 PM	#3
jruiz Large Member Join Date: Jul 2012 Location: La Verne, CA Posts: 1,011	Many power drills are using lithium iron phosphate chemistry. It's really meant for high power applications. Not saying it won't work, just not optimized for your use case. In addition, I'd be curious to know what your FF is doing with that extra voltage. My guess is that it's going through a voltage regulator, some are efficient others are not(linear).