Partner resources & hardware FAQ.
Everything you need to keep your Yedi hardware running — batteries, charging, troubleshooting, emergency access, approved supplies, and the Partner App. For authorized Yedi partners.
Need a hand? support@yedi.app · +1 (201) 279-5151
Batteries
What batteries does the Zen Lock use?
The Yedi Zen Lock (YZL 001) uses 3 × Protected 18650 Lithium-Ion Button-Top batteries. Not included in the box — they must be purchased separately. Only use batteries with a built-in protection circuit (PCB); unprotected 18650 cells are not safe for this device.
| Type | 18650 Li-ion, Protected, Button-Top |
| Quantity per lock | 3 batteries |
| Included in box | No — purchased separately |
| In-lock charging | No — external charger required |
How do I replace the batteries?
Replacement is done from the interior face of the lock. You'll need the Hex 2.0 screwdriver from your Yedi Platform Kit.
- 01Get the Hex 2.0 (2mm Allen) screwdriver from your Yedi Platform Kit.
- 02Unscrew the single top screw on the battery chamber cover. Lift the cover upward to remove.
- 03Remove the old batteries.
- 04Insert 3 charged 18650 batteries — flat side down, button (positive) terminal facing up.
- 05Press the small black reset button inside the compartment. Wait up to 8 seconds for the LED to flash green.
- 06Reattach the cover from the bottom up, press down until seated, and screw it back in.
Important: Wrong battery orientation may damage the device. Always confirm the button-top (positive terminal) is facing up before closing the cover.
How often should batteries be replaced?
Battery life varies by usage volume and environment. The Yedi dashboard shows live battery level per device and will alert you before power is lost. Keep a spare set of charged batteries at each facility. Store them cool and dry — never short, crush, or expose to water or extreme heat.
Charging the batteries
The 18650 cells charge outside the lock using a dedicated charger — there is no built-in charging port. Two compatible 4-bay chargers below, one premium and one budget. For multi-lock facilities, keep a rotating spare set of charged batteries so lock downtime is always zero.
Hardware access
What tools does the lock use?
Two hex/Allen sizes, both included in your Yedi Platform Kit:
| Hex 2.0 (2mm) | Battery compartment cover screw |
| Hex 1.5 (1.5mm) | Handle screws |
Any standard metric hex/Allen bits in these sizes work as replacements — a small set that includes both is the easy call.
What voids the warranty?
| Non-original parts | Accessories or batteries not specified by Yedi |
| Keypad / handle mods | Any modification to external components |
| Internal modifications | Opening or altering internals beyond the battery compartment |
Hardware issues? Contact Yedi before attempting repairs — support@yedi.app or +1 (201) 279-5151.
Troubleshooting
The lock is unresponsive, stuck, or not accepting codes.
Most issues resolve immediately with a hard reset: remove the batteries, wait 5 seconds, reinsert securely.
| Solid green, won't lock | Hard reset |
| Solid red, won't open | Hard reset |
| Flashing green, codes rejected | Hard reset |
Still not resolved? Contact support@yedi.app or call +1 (201) 279-5151.
Codes aren't working — could it be the internet connection?
Yes — the Zen Lock uses 2.4GHz WiFi. A dropped connection can affect code verification. Confirm the facility network is active and in range, then retry. The lock also supports Bluetooth, NFC, keypad PIN, and a mechanical key as alternate access methods while you troubleshoot.
Emergency access
The lock has no power or won't respond. How do we get in?
The Zen Lock has a mechanical key override. The keyhole is on the underside of the exterior lock face. Use the physical key provided on installation day.
Lost your key? Contact Yedi Support at support@yedi.app or +1 (201) 279-5151 and we'll help you get back in. Do not force the lock. If there is a person in distress inside, call 911.
The interior handle is always functional regardless of power state — the door can always be opened from inside.
How-to videos
Product manual
Yedi Zen Lock — full product manual and certifications (YZL 001).
Download PDFApproved supplies
Partners buy their own replacements. These are the cheap, reliable, in-stock options we recommend — order directly from the vendor.
Partner App
The Yedi app connects to your lock over Bluetooth. Use it to configure WiFi and manage access codes. Your phone must be within a few feet of the lock.
Connecting to WiFi
Once connected via Bluetooth, you'll see battery level and master code. Tap Manage Network to configure WiFi.
The WiFi screen opens empty. Tap Scan for Networks — the lock will search for available networks nearby.
Tap Connect next to your building's network and enter the WiFi password.
⚠ 2.4GHz networks only — 5GHz is not supported.
Managing access codes
Your current master code is shown at the top. Tap Master Code to set or update it.
Enter a 4-digit code (no consecutive repeating digits), or tap Generate Random Code. Then tap Set as Master Code to push it to the lock.
🔒 Keep this code private — it provides full administrative access.
Questions not covered here? Email support@yedi.app or call +1 (201) 279-5151.
For authorized Yedi partners only · Partner Portal · YZL 001