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The 12V semi-traction power pack of GALLAGHER is the mo-

bile, rechargeable, energy source for your electrical fencing.

The robust construction with components specially selected

for heavy-duty usage makes the power pack extremely relia-

ble. Despite the fact the power pack needs very little main-

tenance, there are nonetheless a number of guidelines that

should be followed to extend the life of the power pack as far

as possible.

CAPACITY

The effective capacity of the Gallagher Power Pack is 50% of

the nominal capacity (XXAh/C20). The effective capacity de-

pends on the current strength the user wants the power pack

to produce. Example calculation:

Say you have an 85Ah power pack and your energiser uses

150mA (0.15A). 85Ah x 50% = 42.5Ah. 42.5Ah ÷ 0.15A = 283

hours = around 11 days. Within 11 days you have to recharge

your power pack, while a less deep discharge will extend the

life of the power pack!

STARTING UP

The 12V Gallagher Power Pack is supplied unfilled and

uncharged. Before using, the power pack has to be filled with

the enclosed battery acid. Fill the battery cells up to the max.

line, after 1 hour check the level again and top up if necessa-

ry. The power pack then has to be slowly charged up. Prefera-

bly use an automatically regulated 12V battery charger. Once

the power pack has reached 14.4V, and the current is close to

zero, then the power pack is ready for use. A new power pack

does not have optimum capacity straightaway, so it should be

recharged sooner the first few times.

RECHARGING AFTER USE

After the power pack has discharged a maximum of 50%

of its capacity it has to be recharged immediately. It is

essential that the power pack is fully recharged. Use a good

charger for this, set between a minimum of 14.4V and a maxi-

mum of 14.8V. The start charge current must be 10% – 15%

of the capacity of the power pack. Make sure the charger is

working properly by measuring the acid strength at the end

of recharging. This should be between 1.27 - 1.28 kg/l. Check

the acid level at regular intervals and top up the electrolyte

when necessary with demineralised water.

Deep discharging of the power pack and/or poor rechar-

ging will shorten the life of your power pack conside-

rably!

DISCONNECTING

If you are not using the energiser, then you should disconnect

the power pack. This also prevents damage due to excessively

deep discharge.

CLEANING

Moisture and dirt on the cover of the power pack between

the terminals will conduct electricity. Even if the power pack

has been disconnected from the electrical system, the power

pack can still discharge because of the electrical seepage

across the cover. It is therefore essential that the power pack

is cleaned properly before it is stored. Cleaning the cover with

www.gallagher.eu

1701EUR Handleiding Accu 12V v1.3.indd 4

water is usually sufficient. The terminals should be smeared

with a layer of acid-free Vaseline so they do not oxidise.

RECHARGING BEFORE STORAGE

After disconnecting the power pack, check the electrolyte

level in the cells. Instead of topping up with demineralised

water as with normal usage, it is recommended that the

electrolyte level is topped up first and then the power pack

recharged before it is stored for winter. Make sure it is not

over-filled because the electrolyte level will rise during char-

ging. Electrolyte topped up to the right level will ensure low

self-discharge. Disconnect the charger and tilt the power pack

a few times from one side to the other after the charging

process has finished to release any gas and to make sure the

acid is mixed properly.

Charging before storage is very important. If it is a cold

winter, the diluted sulphuric acid might suddenly freeze and

damage the power pack. A charged power pack with an acid

strength of 1.28 kg/l has the lowest freezing point: -70°C.

WINTER STORAGE

During winter storage the power pack will need very little

maintenance. If the power pack remains connected to a drip

charger (float mode, 13.2V), for example, the operation of the

system can be checked during winter once every 3 months. If

the float voltage is higher, for example 13.5V, or the power

pack is older, the system should be checked once every 1.5

– 2 months. If the drip voltage is too high (13.8V) for

long periods this will damage the power pack. If the

power pack is NOT connected to a drip charger during winter

storage, the power pack should be charged up once every 3

months whatever the acid strength. It is better to charge the

power pack too much during storage rather than too little.

However, if the acid strength falls below 1.25 kg/l then the

power pack MUST be charged up.

STORAGE CONDITIONS

High temperatures will accelerate unwanted chemical reacti-

ons in the power pack, such as self-discharge. It is therefore

important to keep the battery in a cool, dry, ventilated room.

WARNING

•

Detonating gas is emitted during charging. Make

sure there is adequate ventilation!

•

No smoking and keep the power pack away from

flames and heat sources.

•

Sulphuric acid is a corrosive substance: do not get

acid on your clothes (will cause damage!), and any

contact with skin should be washed off immediately

under a tap. Wear safety glasses.

•

Any acid in the eyes should be washed off immedia

tely and a doctor contacted.

charge state (%)

1,120

1,140

strength (kg/l)

1,080

1,100

voltage (V)

11,52

11,64

11,76

11,88

English

100

1,160

1,180

1,200

1,260

1,280

1,220

1,240

12,00

12,12

12,24

12,36

12,48

12,60

12,72

30-05-17 09:37