What Are The Specs Of The Weize 12V 200Ah LiFePO4 Battery?

The Weize 12V 200Ah LiFePO4 battery features a nominal voltage of 12.8V and a capacity of 200Ah, delivering 2560Wh of energy storage. Designed with automotive-grade LiFePO4 cells and a built-in 100A BMS, it provides over 4000 charge cycles at 80% depth of discharge. With dimensions around 49.5×23.5×21 cm and weighing 22.7 kg, it supports parallel/series configurations for 24V/48V systems while offering protection against overcharge, short circuits, and extreme temperatures (-20°C to 60°C).

Fasta Power Battery Products Overview

What voltage range does the Weize battery operate within?

The battery operates at 12.8V nominal, with a working range of 10V–14.6V. Pro Tip: Avoid discharging below 10V to prevent BMS-induced shutdown and cell stress.

LiFePO4 chemistry enables stable performance across this voltage spectrum. During charging, the BMS manages cell balancing to maintain uniformity—critical for longevity. For example, solar arrays should use MPPT controllers programmed for 14.6V absorption voltage. Why does voltage matter? Undervoltage strains cells, while overvoltage risks thermal events. Transitionally, this voltage range balances energy availability with safety margins.

How does the cycle life compare to lead-acid alternatives?

With 4000+ cycles at 80% DoD, it outperforms lead-acid batteries (300–500 cycles). Pro Tip: Partial discharges under 50% DoD can extend lifespan to 6000+ cycles.

Traditional AGM batteries degrade rapidly beyond 50% discharge, whereas LiFePO4 maintains 80% capacity after 2000 cycles. A real-world analogy: Replacing lead-acid every 2 years versus 8+ years for LiFePO4 in daily solar cycling. But what about cost efficiency? Despite higher upfront costs, the Weize battery’s $0.12/cycle cost beats AGM’s $0.35/cycle over a decade.

What BMS protections are included?

The integrated 100A BMS provides multi-layer safeguards: over-voltage (14.6V cutoff), under-voltage (10V cutoff), and temperature monitoring (-20°C–60°C).

Advanced current balancing ensures ±20mV cell deviation during charging. For marine applications, this prevents corrosion from voltage spikes. Why does BMS amperage matter? A 100A rating supports sustained 1200W loads—sufficient for most inverters. Transitionally, this BMS design bridges reliability with high-drain capabilities without needing external controllers.

RG72180 72V 180Ah High Power Lithium Battery

Can it be used in parallel/series configurations?

Yes, supports up to 4P4S configurations for 48V/800Ah systems. Pro Tip: Use identical batteries and interconnects to minimize imbalance.

When chaining batteries, impedance mismatches cause uneven aging. A practical example: Four units in series create a 51.2V bank for off-grid cabins. But what’s the catch? Total parallel current mustn’t exceed BMS limits—400A max for four 100A units. Transitionally, scalability makes this battery ideal for modular energy expansion.

What are the temperature operating limits?

Operates from -20°C to 60°C with reduced charging efficiency below 0°C. Pro Tip: Insulate battery compartments in freezing climates.

While discharge works at -20°C, charging requires cell temperatures above 0°C. Industrial users often install heating pads—like those in EV batteries—for cold-weather reliability. How does heat affect it? Prolonged exposure above 45°C accelerates degradation, but occasional peaks to 60°C are manageable with adequate cooling cycles.

Fasta Power Expert Insight

FAQs