Pytes V5°α Plus5.12kWh 51.2V LFP battery module with integrated DC breaker

Overview

The V5°α Plus adds an integrated two-pole DC breaker (125V/125A, 10kA breaking capacity) to the V5°α, so each module can be isolated on site and switched off quickly in an emergency. It keeps the 51.2V, 100Ah, 5.12kWh rating, Amphenol SurLok Plus 8.0mm terminals and heating pad, recommends 75A and allows peaks of 121–200A for 15 seconds. The case grows to 484×578.2×140mm with handles and 45.34kg. Up to 16 modules form a group, and Pytes cabinets such as VR-BOX-IC and V-BOX-OC Plus accept it.

• 51.2V, 100Ah, 5.12kWh per module, 3.2U high
• 75A recommended, peaks of 180A or 200A
• Heating pad works from -18°C to +15°C
• 16 per group, 491.52kWh with a hub
• ≥6,000 cycles, 10-year warranty
• Optional Wi-Fi stick for monitoring and updates

How it works

The V5 series packs 5.12kWh of lithium iron phosphate (51.2V, 100Ah) into a 140mm-high case that fills 3.2U of a rack, hangs on a wall bracket or stands on the floor. Three versions share BMS and ratings: V5° with Phoenix M6 bolt terminals, V5°α with Amphenol SurLok Plus 8.0mm sockets, and V5°α Plus, which adds a two-pole 125V/125A DC breaker and a 200A peak. Modules are connected only in parallel, keeping the bank at 47.5–57.6V.

Key features

Pytes recommends 75A per module for charging and discharging, derated outside a cell temperature of 10–40°C. Short peaks are allowed: 101–120A for three minutes, and 121–180A (V5°, V5°α) or 121–200A (V5°α Plus) for 15 seconds. The cells charge between 0°C and 45°C; an integrated heating pad, active from -18°C to +15°C, warms them by about 10°C per hour. Cycle life is at least 6,000 cycles at 90% depth of discharge, round-trip efficiency at least 95%.

Installation and compatibility

Up to 16 modules form a group of 81.92kWh; six groups can be linked through a Pytes hub for 491.52kWh. Up to three modules parallel with the supplied cables or flexible busbars, larger banks need a busbar or junction box fed with cables of equal length. The manual asks for a 25mm gap between modules, an IP20 indoor location at -10…+50°C and a DC breaker of at least 60V towards the inverter. BK1 and BK2 brackets hold one or two modules on a wall.

Monitoring and settings

The master module talks to the inverter over CAN or RS485, and the others are cascaded through link ports 0 and 1, leaving the outer ports free. A dry contact offers one input and three outputs, and the IoT port accepts the optional Pytes Wi-Fi stick for cloud monitoring and remote firmware upgrades. Pytes lists closed-loop operation with Deye, GoodWe, Hoymiles, Luxpower, SMA, Sol-Ark, Solis, SRNE, Studer, Sunsynk, Victron and Voltronic, among others, selected with the DIP switch.

Questions and answers