Battery Run Time, How long will a light run on a battery, Deep Cycle Battery, Fishing Light Battery
Figures shown below are using a Group 27, 115-amp hr. Deep Cycle Battery.
 
We recommend using  "Deep Cycle Batteries" to power your lights.
"Car" batteries and "Marine Starting" batteries are not designed to be quickly discharged
and recharged on a regular basis.  These types of batteries will run down much faster
than a Deep Cycle Battery and your light will not burn as bright or as long as it should.
Run Time
A simple formula to find out how long a light will run off of your particular battery is to
take the batteries "amp-hour rating" and divide it by the average load in amps.  
So, a 115-amp hour battery running a 100-watt AquaStar that pulls 8-amps should last
approximately 14.4 hours (115/8) on a 115 amp hour deep cycle battery.
Full Size Deep Cycle Batteries
BATTERY TYPE
AMP HOUR RATING
VOLTAGE
APPROX. COST
TR18-12
18 Amp hours
12 volts
$34.80
TR24-12
24 Amp hours
12 volts
$43.50
TR26-12
26 Amp hours
12 volts
$46.50
TR33-12
33 Amp hours
12 volts
$54.80
TR40-12
40 Amp hours
12 volts
$69.50
For those of you who need a smaller battery that will fit in a back pack, the compact
batteries listed below will provide good light for a limited amount of time. The
batteries listed below are sold by
Batteryspec.com and are listed as a customer
service only.  To find out how long a light will run on these batteries, take the Amp
Hours and divide it by the amp draw of the light.  For example, a 50-watt AquaStar
draws about 4 amps.  So, a 18 amp hr. battery would run the light for 4.5 hrs.
(18/4= 4.5) and a 40 amp hr. battery would run it for 10 hrs. (40/4=10)
Compact Deep Cycle Batteries
BATTERY TYPE
AMP HOUR RATING
VOLTAGE
Group 27
100-115 Amp hours
12 volts
Group 29
110-125 Amp hours
12 volts
Wal-Mart and Sam's Club carry a good selection of Deep Cycle batteries for around $70.
We do Not recommend buying the "Combo" Starting/Deep Cycle batteries.
Stick with a "Deep Cycle" battery!
Fish Are Attracted to Fishing Lights Etc Underwater Lights
MODEL
VOLTAGE /
WATTAGE
TYPE
AMPS
LUMEN
HOURS OF
RUN-TIME
Starfire II
12VDC, 50-watts
Halogen
4.1
950
28.0
AquaStar
12VDC, 100-watts
Halogen
8.3
1900
13.8
MAGNUM  300-watt AC  
120VAC, 300-watts
Halogen
0.2
4800
N/A
AlumiGlo SuperBrite 1200
12VDC, 15-watts
240 SMD3528 LEDs
1.2
1200
95.8
AlumiGlo SuperBrite 2400
12VDC, 30-watts
480 SMD3528 LEDs
2.5
2400
46.0
AlumiGlo SuperBrite 4800
12VDC, 60-watts
960 SMD3528 LEDs
5.0
4800
23.0
AlumiGlo DockPro 1700
12VDC, 25-watts
128 SMD5050 LEDs
2.0
1700
57.5
AlumiGlo DockPro 2600
12VDC, 30-watts
128 SMD5050 LEDs
2.5
2600
46.0
           
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