DUSLAN 9 Volt Lithium Ion Battery 500 mAh 6-Pack

Six-pack lithium-ion 9V cells

These six 9 volt lithium-ion cells each deliver 500 mAh capacity and arrive new in a single pack. They suit devices that require a 9V form factor such as wireless microphones, medical instruments or test equipment. The chemistry eliminates memory effect and keeps self-discharge below 10 per cent per month. A built-in PCB guards against over-charge and over-discharge during every cycle.

Sustained output with protection circuit

Under continuous load the internal PCB maintains stable voltage by cutting power before the cells reach critical limits. Each battery accepts up to 700 recharge cycles when paired with the specified lithium-ion charger, which restores a full charge in roughly one hour. The protection logic prevents the voltage sag that can appear in unprotected chemistries during extended sessions. Minimal monthly self-discharge means a stored pack remains ready for weeks without top-up.

Direct alkaline replacement with size check

The pack replaces disposable alkaline 9V batteries in any device that fits the 17.8 mm thickness, 26.8 mm width and 49.2 mm height dimensions. Because the cells are slightly larger than common nickel-metal-hydride 9V packs, the battery compartment must be verified before purchase. Users who need a slimmer profile or a different chemistry should look elsewhere. The economics favour high-drain gear that would otherwise consume many alkaline cells per year.