YUASA - The world's leading battery manufacturer

All You Need To Know About Batteries
Date Coding of batteries for stock rotation purposes
B Maintenance of Stock handling and
recharging of batteries
Information
A - Storage
1 Always rotate your stock. Practice FIFO (First In, First Out).
Batteries slowly lose their charge, and good stock-rotation
stops batteries going flat in storage and makes sure that
the customer buys a good battery.
On the back of the battery. There is a label showing the
expected period before the battery will require recharging.
This makes it easy to identify the oldest and newest
batteries in stock. Please use the recharge date to ensure
that the oldest batteries leave your stock first. Recharge
date is only an indication of recharge period as self
discharge is subject to storage conditions.
2 Store batteries in a cool, dry, well-ventilated area.
3 Protect batteries from excessive heat. (Heat causes
batteries to lose charge more quickly, and excessive heat
can damage batteries).
4 Store batteries in an upright position. (To stop them falling
over or leaking).
5 Do not stack batteries on top of other batteries. (To avoid
scratching, and tearing labels. To avoid damaging terminals
that stand proud of the lid).
6 Store shrink-wrapped batteries up to 3 high. (Any higher
and there is a risk of them falling over and injuring people).
7 Do not remove any seals from dry-charged batteries until
you are ready to commission the battery by filling it with
acid. (The seal preserves the charge in the battery. If it is
broken, air will enter and cause the battery to lose charge).
8 Store batteries on racks or on pallets, not on the floor.
(Small stones or sharp points on a concrete floor can
damage the base of the battery and cause leakage).
9 Make sure handles are left in the flat (down) position.
Upright handles are more likely to be damaged.
Before handling, charging or installing
batteries, please understand and comply
with the precautions given in ‘Health and
Safety Information’ in this Catalogue.
WET Charged Batteries
1. Batteries should be installed ideally within 15 months after
manufacture. The voltage should be (worse case higher
than 12.25V) ideally higher than 12.4V at the time of
installation.
2. Batteries require recharging when the voltage has dropped
below 12.4V due to extended warehouse storage. All safety
precautions should be undertaken prior to recharging
batteries.
See charging instruction section in catalogue for further
details.
If a battery has been recharged, the recharge date on the
back label should be updated by 6 months after second
recharge date by physically notching the label. (Note a
maximum of two recharges are allowed prior to sale, and
product should not be sold a maximum of 9 months after
the expiry of first recommended recharge date).
2.1 A voltage check should be carried out as a matter of
course, both to identify older stock and highlight batteries
requiring recharge.
2.2 Use a digital voltmeter/multimeter with a minimum of 2
figure resolution (eg 12.76V).
2.3 Scrap any batteries below 11.0V (these batteries will have
developed sulphation that cannot be completed reversed
by charging and so will not give the expected performance
and life to the customer.
2.4 Note Digital Conductance testers (such as Midtronics
and/or Bosch BAT121) are:-
NOT designed for the testing of new batteries.
Digital battery testers are not designed to check the
fully developed cold cranking performance of a
new battery.
They are designed purely for the testing and
evaluation of faulty or used batteries.
Any CCA/state of health reading from the test on a
new battery CANNOT be a reliable guide as to
specification of the battery.
See comments on Digital Conductance testers.
DRY Charged Batteries: Maintenance of Stock
Sales of dry charged batteries within our range is very limited,
usually for specialist markets and hence not listed in this
catalogue.
1. If you keep the batteries cool and dry, and do not remove
the seal, dry-charged batteries do not need any other
attention.
2. The maximum storage time of dry-charged batteries before
they are commissioned by filling with acid is 24 months.
3. If the seal is damaged, the batteries should be wetted up
immediately and the product then treated as WET
CHARGED batteries.
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