The Medicines and Healthcare products Regulatory Agency (MHRA) of the United Kingdom has issued an alert concerning all ZeniPower mercury-free hearing aid batteries manufactured by ZeniPower Battery Company Limited. The affected product code numbers are as follows:
[Only batteries with best before dates of '08-2018' and '09-2018' are affected]
According to the MHRA, the problem is caused by excessive gassing, as the zinc electrode reacts with the electrolyte to generate hydrogen. The battery may expand and possibly explode on rare occasions.
For details, please refer to the MHRA website: https://www.gov.uk/drug-device-alerts/all-zenipower-mercury-free-hearing-aid-batteries-low-risk-of-batteries-exploding-during-use-or-if-depleted
If you are in possession of the affected products, please contact your supplier for necessary actions.
Posted on 11 March 2016