Smart locks

Kwikset Halo battery

4 × 1.5V alkaline cell

Kwikset Halo is powered by 4× AA batteries. Kwikset recommends major-brand alkaline and says not to use rechargeable or lithium-ion batteries.

Based on: Kwikset documentation
Last checked: 9 October 2026
Size: 14.5 × 50.5 mm
Voltage: 1.5 V
Rechargeable: Not supported

How to replace it

How to open	Remove the battery pack by sliding upwards, replace with four fresh AA alkaline cells, slide the pack back into the compartment.
Orientation	Match +/- markings in the battery tray
Low battery indicator	App and/or lock low-battery alerts
Notes	Kwikset: Halo is powered by 4× AA batteries; alkaline from a major brand recommended.
Access	Tool-free

Important

Kwikset: Halo is powered by 4× AA batteries; alkaline from a major brand recommended.
Do not use rechargeable or lithium-ion batteries per Kwikset Halo FAQs.
Battery identification and manufacturer-supported replacement only — no lock-bypass guidance.

Sources

Last checked 9 October 2026

Kwikset Support — What kind of batteries does Halo use?
Manufacturer support · kwikset.com

Find more Kwikset manuals →How we check sources

Need a AA?

Kwikset Halo Touchscreen Wi-Fi uses 4 × AA.

Buy on Amazon Amazon UK

Buy links go to Amazon (Associates where tagged) or other affiliate programmes when available. They never change the battery answer.

Helpful for this device

Optional tools for opening, testing or charging — separate from the battery answer.

Amazon links may earn us a commission. They do not change the battery answer.

Ansmann Energy Check LCD
Quick household cell check (good / low / replace)
Docs Buy on Amazon More tools
ZTS Mini-MBT Multi-Battery Tester
More informative state-of-charge style checks across common formats
Docs Buy on Amazon More tools

Battery tester
Quick good / low / dead check for household cells
Crude check only — does not measure capacity under realistic load.
How to test a battery Buy on Amazon

Buy links are optional and separate from the battery answer.

New battery but still not working?

A fresh 4 × AA should restore Kwikset Halo Touchscreen Wi-Fi if the battery was the problem. Work through the checks below before replacing the device.

Check orientation
Confirm the cell is seated correctly: Match +/- markings in the battery tray
Check the battery type
This device needs 4 × AA (alkaline). Rechargeable cells are not supported for this device. Same size does not always mean the same battery.
Check known model-specific issues
Kwikset: Halo is powered by 4× AA batteries; alkaline from a major brand recommended. Do not use rechargeable or lithium-ion batteries per Kwikset Halo FAQs. Battery identification and manufacturer-supported replacement only — no lock-bypass guidance.
Confirm the battery itself
If you have a battery tester or multimeter, check the cell. A low open-circuit voltage often means replace; for rechargeable AA/AAA, a capacity test is more informative than voltage alone.
Still not responding?
If a correct, fresh battery installed properly does not restore the device, the fault may be elsewhere — the device may need service or replacement.

These checks follow this device’s orientation, battery type, and important notes from the maker.

Need to replace the device?

Kwikset Halo Touchscreen Wi-Fi is still sold new. Only buy another if a fresh battery and the checks above did not help.