A Visual inspection

A1 Is the battery leaking?
Move to A2.
Batteries with caps: move to B.
Batteries without caps: move to D.

A2 Are the areas of impact, thrust and pressure visible in the leaking area?
No claim rights. Check the surface of the battery glass for e.g. erroneous tension, foreign objects on the surface of the battery glass.

B Check acid density
Acid density of a good battery must be equal in all columns. Follow the instructions on charger and battery use during charging.

B1 Did the charging density suddenly fall in one of the columns?
Maximum allowed tolerance to the difference of measuring values within 6 columns is: 0,03 kg/dm3.
Replace battery. *
Move to B2.

B2 Is the acid brownish and is increased water consumption present?
No claim rights.
(Check the voltage regulator on the vehicle and capacity loads).
Move to B3.

B3 Is the density of acid equal in all columns and over 1.25kg / dm3?
Move to C or D.
Charge the battery, move to B4.

B4 If the acid density is equal in all columns >1,24 kg/dm3, charge the battery. Does the voltage consumption equal to at least 1/20 of the capacity? (example: 100 Ah battery: 100 Ah x 1/20 = 5A)
Charge the battery and move to C or D.

If charging results in final acid density of 1,24 kg/dm3 or lower, there are no grounds for claim, because of the regular wear due to old age.
– No claim rights.
No claim rights.

Battery is damaged due to insufficient charging, i.e. deep charging. Check the vehicle electrics (voltage regulator, lighting, straps, etc.).

C Discharge inspection

This inspection should be done if the acid density is even and shows the lowest density of 1,25 kg/dm3, otherwise the battery should be charged first.

Note: Pay attention to instructions for battery inspection use.

C1 Does the battery show “Broken” or “Replacement” during
high-voltage inspection?

Replace battery
Battery is orderly

For the inspection of loads with attached resistors: Battery is loaded for 10 seconds with approximately tertiary value of the rated capacity (e.g. battery 12 V 45 Ah corresponds to the approximately 135 A of voltage load). During this procedure, voltage can only be slightly changed.

D Battery testing with electronic testing apparatus

Follow instructions for the use of testing apparatus

Cold testing voltage, known as cold ignition voltage or CCA (Cold Cranking Amps), goes together with the set norm on the battery.

If the cold testing voltage is unknown: for starting battery:
5 x K20 = Cold testing voltage e.g. K20 = 100 Ah: voltage is 5x 100 = 500 A; for ignition and lighting battery (esp. GEL): 3 x K5 cc. possible cold voltage.

If the apparatus has only one option for adjustment according to the old DIN-norm, DIN-voltage is calculated from EN-voltage: DIN-voltage = EN-voltage x 0,6.

With temperatures below 0C temperature, compensation must be taken into consideration.

For testing apparatus in general:
Testing programme calculates phrases “good” or “replacement” on the basis of charging state and available starting performance. It can happen that the battery with 45% of starting performance shows “good” and other with 75% of starting performance shows “replace”. Starting performance comes from the amount of calculated and inserted cold testing voltage; it can exceed 100%.


Electronic testing apparatus is appropriate for batteries used for a certain period of time only and cannot test the performance of new or unused batteries.
Due to this fact, CIAK recommends the implementation of established testing for rated data in EN 50342 testing.

* Claims according to the valid regulations on handling and warranty conditions.
* regular wearing
* not following instructions for use
* reckless and unprofessional assembling, load or handling
* adding of the so-called improvement agents

We are specially addressing the fact that the estimated life cycle depends on the time of use, temperature and battery application. Evaluation of “claim rights” is always implemented in accordance to the above mentioned.