Multifunctionality key trend
The integration of multiple functions is a major trend in Hong Kong’s standard battery charger industry. This includes the incorporation of USB charging utility and multiple ports. The first enables the support of not only regular AA/AAA NiMH batteries but also Li-ion or Li-polymer units that power many portable electronic and gaming devices. Both plug-in and bank types are equipped with this feature.
Vanson Electronics Ltd’s V-3199USB model, for instance, has a built-in USB output port. This slim plug-in charger for two or four AA/AAA NiMH batteries comes with auto-charging current selection, shortcircuit and reverse polarity protection, and 8hr safety timer.
Some makers are incorporating multiple USB ports. Accessories, including a USB cable and interchangeable plugs, are likewise bundled. In some variants, the USB dock becomes the power source for convenient charging via a notebook or desktop PC. As more households accumulate rechargeable batteries in different form factors, suppliers are introducing new desktop stations. For example, ATC Batteries Industry Co. Ltd’s RL-2001A universal model has six independent charging channels for AA, AAA, C, D, and 9V NiMH and NiCd batteries. The device comes with a timer control, battery tester and discharge mode.
Direct plug-in versions with two or four channels are mainstream. A few units include a battery compartment cover. For charging indication, dual-color single LEDs are replacing multiple types for a minimal look. Variants with LCDs are also available as a pricier alternative.
New housing designs feature curved or round edges. These are especially popular among portable, pocket-sized 2-channel models. Matte black remains a staple color in addition to glossy white and metallic silver. Obtaining approval and certification is a priority for many companies. To comply with environmental and safety standards in key export markets, many have raised R&D outlay by hiring more engineers, investing in test equipment and engaging third-party evaluation. Most large enterprises have rapid prototyping and tooling machines for shortening the design cycle.
Hong Kong has about 50 makers of standard battery chargers. Some of them have 20 years of experience manufacturing power supplies and batteries.