Datasheet

5. Leakage Resistance
5.1 Over discharge leakage test
Test conditions: 20±2℃ & RH 55±20%, 20Ω continuous discharge 48h.
Number of test samples: 9 batteries
Requirement: No visible leakage; No explosion.
5.2 High temperature leakage test
Test conditions: store 20 days under 60±2℃, then store 4~24h under standard environment.
Number of test samples: 24 batteries
Requirement: No visible leakage; No explosion.
6. Security Characteristics
6.1 User Drop Test
This test simulates the situation when a battery is accidentally dropped.
Test conditions: Undischarged test batteries shall be dropped from a height of 1m onto a
concrete surface. Each test battery shall be dropped six times, twice in each of
the three axes. The test batteries shall be stored for 1 h afterwards.
Number of test sets: 5 batteries
Requirement: No fire, No explosion.
6.2 Short-circuit explosion-proof characteristics
This test simulates an external short circuit of a battery during daily handling of batteries.
Test conditions: Positive and negative terminals of an undischarged battery shall be connected
directly. The circuit shall be completed for 24 h or until the battery case
temperature has returned to ambient. The resistance of the inter-connecting
circuitry shall not exceed 0,1 Ω.
Number of test samples: 5 batteries
Requirement: No fire or explosion; Leakage is allowable.
6.3 Incorrect installation
This test simulates incorrect installation of a battery in a series application.
Test conditions: 4 undischarged batteries are used per test. 3 batteries are placed correctly
inseries; the 4
th
battery is reversed with respect to polarity. The circuit is
maintained until venting occurs or the reversed battery temperature has returned
to ambient.
Number of test sets: 5 (20 batteries)
Requirement: No fire or explosion; Leakage is allowable.
7. Expiry Date:
5 years
8. Expiry Date Marking:
8.1 Unless otherwise specified, each battery will carry a manufacturing date code followed by month and
year of manufacturing for domestic and manufacturing date code followed by month and year of expiry for
export. (Shelf life 5 years)
Distrelec Schweiz AG, Grabenstrasse 6, 8606 Nänikon, Switzerland, T [phone], [e-mail], distrelec.com