Non-Network Access Control for Electric Vehicle Charging
Liberty Plugins EVSE Control System
LPI adds Network EVSE features to basic Chargers:
- Access Control
- Data Recording
- Communications
- Energy Management
- Open Standards
- Gives Station Owners
- Control of theirs
- Chargers and Customers

LPI’s Synchronous Codes
Access Control without the Network!
- The system uses a common clock to generate the charging and clock sync codes.
- The code is entered into the keypad on the charger.
- A decoding algorithm verifies the code and enables the charging session.
- Ideal for remote locations where cellular reception is poor.

LPI Code Control Module


Charging stops when End Time is reached or the EV is fully charged
Billing Choices For EVSE Owners
- EVSE Owner Controls the billing system and rates
- Use your existing billing systems (gift shops, monthly rent, payroll deduction)
- Optional PayByMobil smartphone billing system available

Liberty PlugIns
PayByMobile Optional Billing System
- No Proprietary Billing or Subscriber
- Use your existing billing systems (gift shops, monthly rent, payroll deduction)
- Optional PayByMobil smartphone billing system available


Pay By Mobile (PBM) EV Charging
Step 1![]() Park and plug-in cable into your EV | Step 2![]() Launch Liberty Hydra App |
Step 3![]() Enter EVSE ID#/ZIP/Address | Step 4![]() Founds deducted and code generated |
Step 5![]() Enter Charging Code | Step 6 6. Charging revenue* and usage reports sent to EVSE owner *Less card processing fee |
Pay By Mobile (PBM)
Cost-Effective Billing Solution for EV Charging
EVSE Owner
- Set Up Account
- Set Fees
- Create Signage
Customer
- Download App
- Create Account

Owner Receives
- 100% of revenue minus credit card processing fees*.
Customer Pays
- EV charging fee (set by owner) plus a convenience fee
*Code Access Fee $9/mo/EVSE