For the connection terminals of the equipment, use iron or stainless steel with nickel plating at the very least. Gold-plating is more suitable when the contact resistance must be reduced.Note: Do not touch batteries with bare hands because perspiration (salt), body oil etc. will increase the surface resistance which may lead to defective contact.

Preventing Quality Problems

Memory Erasure Problems

To prevent momentary contact failure of several milliseconds in the circuit, the use of a tantalum capacitor, etc. with a capacitance of several microfarads is effective. (See Fig. 6) Coin-type lithium batteries are often used as the power supplies manufacturer for memory backup in various equipment. However problems with the erasure of valuable data in the memory due to improper contact between the batteries and equipment have been reported.
Fig.1: soldering When batteries need to be replaced, use a battery holder (see Fig. 2) or battery with lead wire connectors (see Fig. 3). Battery holders made by Panasonic (exclusively for the CR2032 and BR2032, see Fig. 2) are available for use. 1. When batteries are to be used continuously for a prolonged period. 2. When batteries need to be replaced in the short term, Select tab terminal-mounted batteries, and solder the tabs to the battery connection terminals of the equipment. (See Fig. 1) Use of Y-shaped terminals (2-point contact) for both the (+) and (-) poles as the shape of the connection terminals in the equipment helps to achieve a more stable contact. (See Fig. 4) The contact pressure of the contacts should be no less than 2 to 10N (approx. 200 to 1000 gf). (See Fig. 5) select batteries with no terminals or lead wire connectors.
Fig. 2 Fig. 3 Avoiding Hazards and Preventing Quality Problems Fig. 4 excessive load 2~10NFig. 5: ICFig. 6 Chapter 6

Chapter 6- 89