Performance analysis of ten brands of batteries for hearing aids

Abstract

Summary Introduction: Comparison of the performance of hearing instrument batteries from various manufacturers can enable otologists, audiologists, or final consumers to select the best products, maximizing the use of these materials. Aim: To analyze the performance of ten brands of batteries for hearing aids available in the Brazilian marketplace. Methods: Hearing aid batteries in four sizes were acquired from ten manufacturers and subjected to the same test conditions in an acoustic laboratory. Results: The results obtained in the laboratory contrasted with the values reported by manufacturers highlighted significant discrepancies, besides the fact that certain brands in certain sizes perform better on some tests, but does not indicate which brand is the best in all sizes. Conclusions: It was possible to investigate the performance of ten brands of hearing aid batteries and describe the procedures to be followed for leakage, accidental intake, and disposal.

Analysis of Electrochemical Impedance Spectroscopy on Zinc-Air Batteries Using the Distribution of Relaxation Times

“…Different temperatures in the climatic chamber can lead to different humidities and thus the measurements were probably affected by an unknown error. Penteado and Bento have discussed, beside the deviation of the nominal capacity from the measured capacity of different manufacturers, the average service of the PR48 cell type, which showed a variation of 266 ± 26 h [69]. These results confirm the capacity measurements in this study that each cell may have a different factory-made capacity.…”

A Computationally Efficient 11 Band Non-Uniform Filter Bank for Hearing Aids Targeting Moderately Sloping Sensorineural Hearing Loss

“…Based on the analysis performed on the past research on VLSI signal processing [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] and audiology [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37], the parameters that need to be considered for Filter Bank Design in Digital HA are summarized in Table 1.…”

Corrosion failure analysis of hearing aid battery-spring contacts

“…However, this might be possible due to the presence of KOH from the Zn air batteries. Under such situations, the degradation of metal contact can occurs due to F as well as the leaked KOH from the faulty batteries [23,24]. In general cases, where faulty battery is not an issue, corrosion or degradation is expected to be caused by Cl from the salts of Na and K in the atmosphere, human perspiration and dust particles (see Figure 7 (c)).…”