As portable electronic devices proliferate, the efficiency and reliabilityof batteries to power them becomes ever more critical. The recent recalls of batteries due to fire hazards drew worldwide concerns also resulted in more stringent quality supervision by international authorities.

Cerpass Taiwan Battery Lab had arranged for the IEC to audit its lab 2012/Q3 and is looking forward to acquire CBTL for Category”BATT”(IEC62133) in 2012/Q4. In addition, wewill be eligible to participate in the Witness Test Data Program (WTDP), the first level of UL’s Data Acceptance Program for UL2054.

As always, we are ready to provide an efficient testing and certification service for verifying compliance with the relevant global battery requirements including UL, IEC and others, fully leveraging the testing related to any previous or concurrent UL evaluations based on UL 1642 and UL 2054. Depending on your marketing plans, we can help you set up the most time and cost effective approach to obtaining all necessary battery certifications.

Battery Certification Test Items Brief Introduction

Test items according to IEC / EN 62133 below could be taken into consideration on design and planning stage:

A. Continuous Low-Rate Charging

Test Method: Fully charged cells are subjected for 28 days to a charge as specified by the manufacturer.
Acceptance criteria: a. Nickel systems: no fire, no explosion. b. Lithium systems: no fire, no explosion, no leakage.

B. Vibration

Test Method: Fully charged cells or batteries are vibration-tested under the following test conditions and the sequence in Table 2. A simple harmonic motion is applied to the cells or batteries with an amplitude of 0,76 mm, and a total maximum excursion of 1,52 mm. The frequency is varied at the rate of 1 Hz/min between the limits of 10 Hz and 55 Hz. The entire range of frequencies (10 Hz to 55 Hz) and return (55 Hz to 10 Hz), is traversed in 90 min ± 5 min for each mounting position (direction of vibration). The vibration is applied in each of three mutually perpendicular directions. Acceptance criteria:No fire, no explosion, no leakage.

C. Temperature Cycling

Test Method: Fully charged cells or batteries are subjected to temperature cycling (–20 °C, +75 °C), in forced draught chambers, according to the following procedure.After the fifth cycle, store the cells or batteries for seven days prior to examination
Step 1: Place the cells or batteries in an ambient temperature of 75 °C ± 2 °C for 4 h.
Step 2: Change the ambient temperature to 20 °C ± 5 °C within 30 min and maintain at this temperature for a minimum of 2 h.
Step 3: Change the ambient temperature to –20 °C ± 2 °C within 30 min and maintain at this temperature for 4 h.
Step 4: Change the ambient temperature to 20 °C ± 5 °C within 30 min and maintain at this temperature for a minimum of 2 h.
Step 5: Repeat steps 1 to 4 for a further four cycles.
Acceptance criteria: No fire, no explosion, no leakage.