Use as a 2nd battery so your Serene SA-40 HearAll cell phone amplifier never runs out of juice, or use it to replace a lost or underperforming battery. Lithium ion, 3.7 volt, 800mAh.
SA40-BATT
$9.20
Use as a 2nd battery so your Serene SA-40 HearAll cell phone amplifier never runs out of juice, or use it to replace a lost or underperforming battery. Lithium ion, 3.7 volt, 800mAh.
