WINSTON 48V, 6.24kWh LiFeYPO4 Set, 130Ah Cells, BMS Mobile Monitoring.
Highly Energy-Efficient Lithium Cell/Set, Original Product from Winston Battery with LiFePO4 (LiFeYPO4) Technology.

Contents of the set

• Model: WB-LYP130AHA
• Capacity: 130 Ah
• Original ThunderSky Winston designation: WB-LYP130AHA, TSWB-LYP1300AHA
• Recommended initial and subsequent charging: 3.65 V
• Minimum voltage: 2.8 V
• Maximum voltage: 3.8 V
• Maximum discharge current: 3C continuous
• Operating temperature: -45 to +85 °C (discharge)
• Energy density: 85.8 Wh/kg

These battery cells are suitable for all traction applications, including electric vehicles. They are also suitable for stationary applications, such as energy storage.
There is no self-discharge.
Can be charged at any state of discharge - no memory effect.
LiFePO4 is a very safe technology, no self-ignition, no reaction with moisture or oxygen.
All cells are supplied new directly from the manufacturer.
The original wooden box contains 9 cells, has dimensions of 583 × 446 × 400 mm, and weighs 55 kg.

BASIC SPECIFICATIONS

Technology: Lithium (LiFeYPO4/LiFePO4)
Nominal voltage: 3.3 V
Operating voltage (under load): 3.0 V
Capacity: 130 Ah
Operating temperature range: -45 to +85 °C
Weight: 5.2 kg
Dimensions: 360 × 177 × 55 mm

Module size using 130Ah cells

1 cell – Capacity 390 Wh / Depth 55 mm / Weight 5.2 kg
4 cells (12 V) – Total capacity 1560 Wh / Depth 220 mm / Weight 20.8 kg
8 cells (24 V) – Total capacity 3120 Wh / Depth 440 mm / Weight 41.6 kg
16 cells (48 V) – Total capacity 6240 Wh / Depth 880 mm / Weight 83.2 kg

Balancing and protection electronics
An important part of each battery module is balancing and protection electronics. The most common solution is BMS123 Smart BMS123. This advanced solution for monitoring and managing LiFePO4 batteries supports Bluetooth connectivity to a phone, iPad, tablet, or other devices. It comes with a free app for Android and iOS.

Common connection schemes for BMS & SBM
Example connection of BMS123 including charger, consumer, and important fuses and switches.

SBM is a simple solution offering basic protection; the scheme depicts the version with 16 cells connected to the charger and fuses.

Cell connections
Winston manufactures cells with an easily assembled square shape; terminals are made on screws allowing easy installation using a wrench.

An important part of each battery module is the connection between cells. Original copper connectors are made of several thin layers, ensuring ideal flexibility and conductivity.
Before installation, don't forget to clean the terminals and connectors from oxidation (with emery or similar paper). Oxidized contacts can have very high resistance and cause battery imbalance.
A cheap solution is plastic covers that prevent unwanted short circuits and make it easier to mark plus and minus (available in red and black).

Winston Battery Tests

A series of destructive tests of lithium iron phosphate (LiFeYPO4) cells from ThunderSky Winston will help you understand how the cells behave in case of being pierced with a fire axe or intentional short circuit with a current up to 1600 A (400 C).
You can view 4 tests (puncture, overcharge, short circuit, ignition from an external source).
Result: LiFePO4 cells are extremely resistant to physical abuse and pose no danger to their surroundings even in the case of a short circuit.