Frequently Asked Questions
- Do you offer international shipping for your products? ❯
- How can I pay for my order on Balticdiag.com? ❯
Your shopping cart is empty!

The SmartSafe EP401 is a professional battery pack charge discharge machine developed for automotive repair workshops that work with electric vehicle (EV) battery modules. Built around a wide voltage design, it combines charging, discharging and cell balancing within a single unit, making it one of the most complete solutions available for battery module maintenance. Unlike a standard auto battery tester, the EP401 goes further by running full charge and discharge cycles while monitoring individual cell voltages, assessing battery health and recording capacity data in real time. It supports all types of lithium batteries as well as nickel metal hydride batteries, making it a versatile and reliable choice for workshops handling a wide range of vehicle types.
![]()
Supports charging and discharging maintenance for various battery type
![]()
Utilizes advanced charging and discharging testing technology to avoid interference with the BMS system
![]()
Supports a maximum of 72 channels for cell voltage collection and 12 channels for temperature collection
![]()
Automatically determines charging and discharging operations
![]()
Wide voltage design with built-in multiple charging and discharging modes to meet the voltage and current requirements of various battery pack modules, ensuring safety while improving charging and discharging efficiency
![]()
Reverse polarity, overtemperature, short circuit, overcurrent, fan failure, overvoltage, overcurrent, etc. will be warned to ensure hardware safety
The EP401 interface is available in 10 languages with no additional licence required: Simplified Chinese, Traditional Chinese, English, French, Italian, German, Japanese, Korean, Spanish and Russian.

Module Charge and Discharge
(with up to 72-channel cell data monitoring)

Battery Pack Full-Pack Charge and Discharge

Battery Pack Health Monitoring(SOC/SOH)

BMS Data Acquisition,Comprehensive Protection for the Battery Pack
Yes, we offer fast international express delivery for all products available at BalticDiag.com. We deliver worldwide — including the USA, Europe, North America, South America, Asia, Africa, and Australia — using trusted courier services such as DHL, UPS, and FedEx. Every order is shipped with express delivery straight to your door, ensuring a quick and secure arrival. Shipping fees are included in the product price, and we provide full tracking information so you can monitor your package from dispatch to delivery.
Please note that some products include free delivery, while others require confirmation of shipping costs before purchase. In most cases, pallet-sized packages have additional delivery charges that must be calculated in advance by our sales team.
We accept a wide range of secure global and local payment methods, including:
| Power Input | AC90~264V/40~60Hz |
| Terminal voltage accuracy | ≤±0.1%FS+0.3V, resolution: 0.1V |
| Single cell voltage accuracy | ≤±0.1%FS+5mV, resolution: 0.001V |
| Test current accuracy | ≤±0.5%FS+0.2A, resolution: 0.1A |
| Charging & discharging voltage | DC 2~400V |
| Charge current | 0~100A, maximum power 4.4kW |
| Discharge current | 0~100A, maximum power 7.2kW |
| Interface | RJ45×1/USB×2 |
| Display | 10-inch LCD screen, resolution 1280X 800 |
| Charging control | constant current charging + constant voltage charging |
| Discharge control | constant current discharge |
| Battery module charge and discharge protection | overcharge, over-discharge, and overtemperature protection for battery module |
| Host protection | over-temperature, over-current, and current out of control trigger shutdown protection |
| Reverse polarity protection | Supported |
| Abnormal protection | power line power failure, main cable power failure |
| Overtemperature protection | Resistor box overtemperature at 85°C; radiator overtemperature at 100°C |

| Power Input | AC90~264V/40~60Hz |
| Terminal voltage accuracy | ≤±0.1%FS+0.3V, resolution: 0.1V |
| Single cell voltage accuracy | ≤±0.1%FS+5mV, resolution: 0.001V |
| Test current accuracy | ≤±0.5%FS+0.2A, resolution: 0.1A |
| Charging & discharging voltage | DC 2~400V |
| Charge current | 0~100A, maximum power 4.4kW |
| Discharge current | 0~100A, maximum power 7.2kW |
| Interface | RJ45×1/USB×2 |
| Display | 10-inch LCD screen, resolution 1280X 800 |
| Charging control | constant current charging + constant voltage charging |
| Discharge control | constant current discharge |
| Battery module charge and discharge protection | overcharge, over-discharge, and overtemperature protection for battery module |
| Host protection | over-temperature, over-current, and current out of control trigger shutdown protection |
| Reverse polarity protection | Supported |
| Abnormal protection | power line power failure, main cable power failure |
| Overtemperature protection | Resistor box overtemperature at 85°C; radiator overtemperature at 100°C |