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Gate Battery 12V 7ah
Expected Life of a Battery in a Gate Motor depends on usage and the brand of Gate Motor But generally needs to be replaced in 3 to 4 years.
Replacement Cost approx $45.00


In case of Power failure normally your gate would open and close around 15 times.
Depends on the Battery fitted.

Some gate motors draw their entire power from the battery which is continually top up with 240V power these gates motors and batteries have a shorter life then others.  More modern gate motors only use the battery as a back up in case of power failures.
12V 6ah SLA
sealed, rechargeable batteries. $39.45

Length: 150mm. Width: 64.5mm. Height: 96mm (101mm). Weight: 2.5kg.
P/N GM175
A 100Ah battery will deliver 1 amp of current for 100 hours, 4 amps for 25 hours
A 12V 7ah Battery has only 1.7 ohms of resistance -
that's giving 84 watts of power


Some interesting Facts for Solar Batteries

To Find out the Average annual & monthly sunshine duration Source in Australia Click Here
Source Commonwealth of Australia , Bureau of Meteorology

These Figures are a daily average number of bright sunshine hours over a month 

Sydney 7 hours
Melbourne 6 hours 
Brisbane 8 hours
Adelaide 8 hours
Perth 8 hours 
Hobart 5 hours
Deep cycle Batteries for Solar Gates
Deep Cycle 12V5Amp Rechargeable battery
$43.89 each
Length: 90mm. Width: 70mm. Height: 101mm (107mm).
Weight: 1.6kg
P/N GM172
 
12V 4.2ah/20HR SLA
sealed, rechargeable batteries. $36.36

Length: 90mm. Width: 70mm. Height: 101mm (107mm). Weight: 1.6kg.
P/N GM170
What is a Deep Cycle Battery
Second battery in Parallel wiring
First battery in Parallel wiring
Third battery in Parallel wiring
Parallel Wiring using 3 Batteries in a daisy chain but Still supplying 12 Volts but 3 times stronger then 1 x 12 Volt
Negitive
Postive
This shows a parallel circuit to increase current or power. We are using 12 volt batteries the power of these 3 batteries gives us the power of a battery 3 times as powerful but the voltage stays the same at 12 volts. Parallel wiring increases current but the voltage does not change.
First Battery in Serial Wiring
Second Battery in Serial Wiring
Serial Wiring
This is show you how to use 2 x 12V batteries to get 24V supply to your 24V gate System
line2
line1
line3
Negitive
Postive
postive wire to batteries
negitive wire to battery
12V 5 ah Back up Battery
+
+
--
--
+
+
+
--
--
--
Serial Wiring
Series wiring increases voltage but NOT amp/hour capacity.
Parallel Wiring
Parallel wiring increases capacity but NOT voltage.
Important
All the Batteries must be the same type.
All pictures are watermarked - "Copyright 2/1/09 by Gatesplus
Please note: Our range of Sealed Lead Acid and Gel Cell batteries are classed as Dangerous Goods and can't be shipped via standard post.
Surface Road Transport freight cost anywhere in Australia - $18.90 each battery.

SLA = Sealed Lead Acid Battery

2.2 Amp Hour 12 Volt Sealed Lead Acid Battery
Size: 178L x 34D x 66HCharge current: 220 mA for 10-14
$42.30
P/N GM165
2.2 Amp Hr 12V Battery
A Great Source of information from the Battery University
12V Batteries
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Batteries for Gate Motors