lightweight deep cycle batteries

[Paul Pless]

I am looking for an alternative battery for a 24 volt trolling motor. I thought that there was a company marketing some type of gell cell or dry cell that was approximately one-half the weight of a normal deep cycle battery.

Any ideas?

thanks,

Paul

[Paul Pless]

I am looking for an alternative battery for a 24 volt trolling motor. I thought that there was a company marketing some type of gell cell or dry cell that was approximately one-half the weight of a normal deep cycle battery.

Any ideas?

thanks,

Paul

[Paul Pless]

I am looking for an alternative battery for a 24 volt trolling motor. I thought that there was a company marketing some type of gell cell or dry cell that was approximately one-half the weight of a normal deep cycle battery.

Any ideas?

thanks,

Paul

[kc8pql]

Search aircraft battaries. Not sure you'll find anything high amp/deep discharge though.

[kc8pql]

Search aircraft battaries. Not sure you'll find anything high amp/deep discharge though.

[kc8pql]

Search aircraft battaries. Not sure you'll find anything high amp/deep discharge though.

[trull]

Optima batteries (http://www.optimabatteries.com) produces a TrollFury battery pack system which is designed for trolling motors.

[trull]

Optima batteries (http://www.optimabatteries.com) produces a TrollFury battery pack system which is designed for trolling motors.

[trull]

Optima batteries (http://www.optimabatteries.com) produces a TrollFury battery pack system which is designed for trolling motors.

[Donn]

Paul...you may be remembering the EverTroll battery. It came out in a 45# 12V version, back in the late 90's. It supposedly provided as much juice as two 60# traditional deep cycle batteries.

It was made by Evercel (http://www.evercel.com/) , but their site doesn't list it. It was pretty expensive when it was first introduced, ~$500, so it may not have sold well enough to continue.

[Donn]

Paul...you may be remembering the EverTroll battery. It came out in a 45# 12V version, back in the late 90's. It supposedly provided as much juice as two 60# traditional deep cycle batteries.

It was made by Evercel (http://www.evercel.com/) , but their site doesn't list it. It was pretty expensive when it was first introduced, ~$500, so it may not have sold well enough to continue.

[Donn]

Paul...you may be remembering the EverTroll battery. It came out in a 45# 12V version, back in the late 90's. It supposedly provided as much juice as two 60# traditional deep cycle batteries.

It was made by Evercel (http://www.evercel.com/) , but their site doesn't list it. It was pretty expensive when it was first introduced, ~$500, so it may not have sold well enough to continue.

[Paul Pless]

Thanks guys,

Donn, that is the battery that I am looking for, my current jetdrive fishing boat using two conventional 12 volt deep cycle batteries that together weigh over 160 lbs. I am purchasing a new boat and anything I can do to save weight is worth looking at.

I am upping the motor size and the new motor weighs 130 lbs more than my current motor. The increase in horsepower will more than offset its weight and will still allow the boat to plane off into shallow water, but when off plane I need to offset the additional weight if possible.

Paul

[ 03-08-2005, 11:20 AM: Message edited by: Paul Pless ]

[Paul Pless]

Thanks guys,

Donn, that is the battery that I am looking for, my current jetdrive fishing boat using two conventional 12 volt deep cycle batteries that together weigh over 160 lbs. I am purchasing a new boat and anything I can do to save weight is worth looking at.

I am upping the motor size and the new motor weighs 130 lbs more than my current motor. The increase in horsepower will more than offset its weight and will still allow the boat to plane off into shallow water, but when off plane I need to offset the additional weight if possible.

Paul

[ 03-08-2005, 11:20 AM: Message edited by: Paul Pless ]

[Paul Pless]

Thanks guys,

Donn, that is the battery that I am looking for, my current jetdrive fishing boat using two conventional 12 volt deep cycle batteries that together weigh over 160 lbs. I am purchasing a new boat and anything I can do to save weight is worth looking at.

I am upping the motor size and the new motor weighs 130 lbs more than my current motor. The increase in horsepower will more than offset its weight and will still allow the boat to plane off into shallow water, but when off plane I need to offset the additional weight if possible.

Paul

[ 03-08-2005, 11:20 AM: Message edited by: Paul Pless ]

[Dan McCosh]

Halfe the weight is improbable. The weight of the active material in a lead-acid battery (the lead) determines the energy storage capacity. Half the weight would mean half the capacity. You can find smaller batteries with equivalent cranking amps, for engine starts, but these wouldn't drive a trolling motor as long as a heavier battery. You might be looking at an AGM style battery, which does allow deeper discharging, hence extends its useful capacity somewhat. These still won't produce equal amp-hours with half the weight.

[Dan McCosh]

Halfe the weight is improbable. The weight of the active material in a lead-acid battery (the lead) determines the energy storage capacity. Half the weight would mean half the capacity. You can find smaller batteries with equivalent cranking amps, for engine starts, but these wouldn't drive a trolling motor as long as a heavier battery. You might be looking at an AGM style battery, which does allow deeper discharging, hence extends its useful capacity somewhat. These still won't produce equal amp-hours with half the weight.

[Dan McCosh]

Halfe the weight is improbable. The weight of the active material in a lead-acid battery (the lead) determines the energy storage capacity. Half the weight would mean half the capacity. You can find smaller batteries with equivalent cranking amps, for engine starts, but these wouldn't drive a trolling motor as long as a heavier battery. You might be looking at an AGM style battery, which does allow deeper discharging, hence extends its useful capacity somewhat. These still won't produce equal amp-hours with half the weight.

[Hal Forsen]

You might try these folks.
http://www.odysseybatteries.com/
HF

[Hal Forsen]

You might try these folks.
http://www.odysseybatteries.com/
HF

[Hal Forsen]

You might try these folks.
http://www.odysseybatteries.com/
HF

[ahp]

Forget about cranking amps. That is not what you are doing. The parameter that you need to consider above all others is "Specific Energy" which is (volts x amperes x time)/weight. Lead acid is about 15 to 20 watt-hours per pound.

[ahp]

Forget about cranking amps. That is not what you are doing. The parameter that you need to consider above all others is "Specific Energy" which is (volts x amperes x time)/weight. Lead acid is about 15 to 20 watt-hours per pound.

[ahp]

Forget about cranking amps. That is not what you are doing. The parameter that you need to consider above all others is "Specific Energy" which is (volts x amperes x time)/weight. Lead acid is about 15 to 20 watt-hours per pound.

[RonW]

http://www.trojan-battery.com/Voltage.asp

You want a hard core deep deep cycle battery. In 12 volt you want the 5shp.
In 6 volt you want the t-105 or t-125 or t-145.
Glass mat and gells cost 3 times as much, last very little longer if at all, and only want to be disscharged down to 50%, plus they are very sensitive to being charged as well as weighing as much as 30% more then a wet cell. The batteries above will have a discharge and charge cycle of 600 times.
These are the batteries they are using in electrical vehicles, and the t-105 have been known to last 20 years in a e.v.
Trojan has plates of 150th. and most other batteries commonly available have plate thickness of 90th.
The commonly sold deep cycle battery sold as marine batteries are junk.

[RonW]

http://www.trojan-battery.com/Voltage.asp

You want a hard core deep deep cycle battery. In 12 volt you want the 5shp.
In 6 volt you want the t-105 or t-125 or t-145.
Glass mat and gells cost 3 times as much, last very little longer if at all, and only want to be disscharged down to 50%, plus they are very sensitive to being charged as well as weighing as much as 30% more then a wet cell. The batteries above will have a discharge and charge cycle of 600 times.
These are the batteries they are using in electrical vehicles, and the t-105 have been known to last 20 years in a e.v.
Trojan has plates of 150th. and most other batteries commonly available have plate thickness of 90th.
The commonly sold deep cycle battery sold as marine batteries are junk.

[RonW]

http://www.trojan-battery.com/Voltage.asp

You want a hard core deep deep cycle battery. In 12 volt you want the 5shp.
In 6 volt you want the t-105 or t-125 or t-145.
Glass mat and gells cost 3 times as much, last very little longer if at all, and only want to be disscharged down to 50%, plus they are very sensitive to being charged as well as weighing as much as 30% more then a wet cell. The batteries above will have a discharge and charge cycle of 600 times.
These are the batteries they are using in electrical vehicles, and the t-105 have been known to last 20 years in a e.v.
Trojan has plates of 150th. and most other batteries commonly available have plate thickness of 90th.
The commonly sold deep cycle battery sold as marine batteries are junk.

[RodB]

I have done a little homework on this (series 27 and 29 batteries) when researching chargers... and decided to buy the Rolls batteries (Surette). My 2nd choice was the Trojan but the Rolls series 27 is probably a better battery from my research. I can get the Rolls for under $100, just a bit less than the Trojan and I am quite sure the Rolls batteries have thicker plates than the Trojan.

The most power is wet cell bttys for trolling motors... and if weight is not an issue, the best way to go to maximize power is two 6 volt golf cart batteries in series. ..this beats any 12 volt single battery by a significant amount. I had this recommended by three different electrical engineers from companies such as Charles Industries, Blue Sea, and Xantrax....

From my homework you get less power from Optima (size of package/weight for deep cycle use) compared to a wet cell, they do great as crank batteries that sit around for long periods of time not being used...and have very little voltage drop...I can't see buying two of their blue top deep cycle D34M for the "Troll Fury" setup to get reasonable power to run a trolling motor...thats over $300 because its optima and not near as much power as two series 27 Trojans for around $200.00.

I will buy the blue top Optima crank battery for my crank battery but for deep cycle trolling motor batteries I will go lead acid wet cell.
If you get a good quality battery like Rolls or Trojan, you can get lots of service out of them if you just maintain them properly with a quality charger and charging procedure...etc...probably 4-5 years easy if not longer.

RB

[ 03-16-2005, 02:18 AM: Message edited by: RodB ]

[RodB]

I have done a little homework on this (series 27 and 29 batteries) when researching chargers... and decided to buy the Rolls batteries (Surette). My 2nd choice was the Trojan but the Rolls series 27 is probably a better battery from my research. I can get the Rolls for under $100, just a bit less than the Trojan and I am quite sure the Rolls batteries have thicker plates than the Trojan.

The most power is wet cell bttys for trolling motors... and if weight is not an issue, the best way to go to maximize power is two 6 volt golf cart batteries in series. ..this beats any 12 volt single battery by a significant amount. I had this recommended by three different electrical engineers from companies such as Charles Industries, Blue Sea, and Xantrax....

From my homework you get less power from Optima (size of package/weight for deep cycle use) compared to a wet cell, they do great as crank batteries that sit around for long periods of time not being used...and have very little voltage drop...I can't see buying two of their blue top deep cycle D34M for the "Troll Fury" setup to get reasonable power to run a trolling motor...thats over $300 because its optima and not near as much power as two series 27 Trojans for around $200.00.

I will buy the blue top Optima crank battery for my crank battery but for deep cycle trolling motor batteries I will go lead acid wet cell.
If you get a good quality battery like Rolls or Trojan, you can get lots of service out of them if you just maintain them properly with a quality charger and charging procedure...etc...probably 4-5 years easy if not longer.

RB

[ 03-16-2005, 02:18 AM: Message edited by: RodB ]

[RodB]

I have done a little homework on this (series 27 and 29 batteries) when researching chargers... and decided to buy the Rolls batteries (Surette). My 2nd choice was the Trojan but the Rolls series 27 is probably a better battery from my research. I can get the Rolls for under $100, just a bit less than the Trojan and I am quite sure the Rolls batteries have thicker plates than the Trojan.

The most power is wet cell bttys for trolling motors... and if weight is not an issue, the best way to go to maximize power is two 6 volt golf cart batteries in series. ..this beats any 12 volt single battery by a significant amount. I had this recommended by three different electrical engineers from companies such as Charles Industries, Blue Sea, and Xantrax....

From my homework you get less power from Optima (size of package/weight for deep cycle use) compared to a wet cell, they do great as crank batteries that sit around for long periods of time not being used...and have very little voltage drop...I can't see buying two of their blue top deep cycle D34M for the "Troll Fury" setup to get reasonable power to run a trolling motor...thats over $300 because its optima and not near as much power as two series 27 Trojans for around $200.00.

I will buy the blue top Optima crank battery for my crank battery but for deep cycle trolling motor batteries I will go lead acid wet cell.
If you get a good quality battery like Rolls or Trojan, you can get lots of service out of them if you just maintain them properly with a quality charger and charging procedure...etc...probably 4-5 years easy if not longer.

RB

[ 03-16-2005, 02:18 AM: Message edited by: RodB ]

[TimothyB]

I'm a little curious...

Aside from the expense, why is it so few people use larger NICad batteries for deep discharge?

Is there a shortcoming I am not seeing besides the $$ ?

[TimothyB]

I'm a little curious...

Aside from the expense, why is it so few people use larger NICad batteries for deep discharge?

Is there a shortcoming I am not seeing besides the $$ ?

[TimothyB]

I'm a little curious...

Aside from the expense, why is it so few people use larger NICad batteries for deep discharge?

Is there a shortcoming I am not seeing besides the $$ ?

[Dan McCosh]

Nicads work fine. They are very expensive, though. I once met a retired US navy admiral who had equpped his sailboat with all military spec equipment. He selected Nicads for the batteries. Guess he got them at a slight discount, however.

[Dan McCosh]

Nicads work fine. They are very expensive, though. I once met a retired US navy admiral who had equpped his sailboat with all military spec equipment. He selected Nicads for the batteries. Guess he got them at a slight discount, however.

[Dan McCosh]

Nicads work fine. They are very expensive, though. I once met a retired US navy admiral who had equpped his sailboat with all military spec equipment. He selected Nicads for the batteries. Guess he got them at a slight discount, however.