The CHISEN OPzV 2V 300Ah battery is a premium stationary lead-acid battery featuring GEL technology. This comprehensive guide covers specifications, applications, performance, and maintenance for the 300Ah model.
1. Product Overview
The CHISEN OPzV 2V 300Ah battery represents CHISEN Battery’s advanced GEL technology, designed for demanding stationary energy storage applications. The “OPzV” designation follows the IEC international standard for tubular plate stationary VRLA batteries, while “300Ah” indicates the rated capacity of 300 ampere-hours at the standard C20 discharge rate.
This 2V cell format allows flexible system configuration: series connection achieves higher system voltages (48V, 96V, 120V), while parallel strings increase total capacity. The 300Ah capacity makes it ideal for solar energy storage systems, telecom base stations, and industrial UPS applications requiring reliable long-duration backup power.
2. Technical Principles and Construction
The OPzV 2V 300Ah uses tubular GEL technology — the most advanced lead-acid chemistry available. Key construction features:
- Tubular positive plates: Lead dioxide active material contained in braided polyester tubes with corrosion-resistant lead alloy spines. This design prevents positive plate shedding — the primary failure mode in flat-plate batteries.
- Gelled electrolyte: Sulfuric acid immobilized in silica gel provides uniform ionic distribution, eliminating stratification and enabling recombinant gas management.
- Pressure-regulated valves: Recombinant valve maintains internal pressure for >99% gas recombination efficiency, achieving truly maintenance-free operation.
The gel electrolyte enables the battery to be installed in any orientation (except permanently inverted) and provides superior deep discharge recovery compared to AGM batteries.
3. Application Scenarios
4. Performance Advantages
The CHISEN OPzV 2V 300Ah offers these key performance characteristics:
- Cycle life: 1,200–1,500 cycles at 80%% DoD (depth of discharge), making it ideal for daily cycling solar applications.
- Float life: 15–20 years at 25C ambient temperature — one of the longest service lives in lead-acid technology.
- Operating temperature: -40C to +60C — unmatched performance in extreme climate conditions.
- Efficiency: 85–90%% round-trip energy efficiency.
- Self-discharge: Less than 2%% per month at 25C — minimal losses during storage.
- Deep discharge recovery: Superior recovery after repeated deep discharges compared to AGM batteries.
The tubular GEL design delivers the longest cycle life of any sealed VRLA technology, making it the preferred choice for solar energy storage applications requiring daily cycling.
5. Maintenance Guide
The CHISEN OPzV 2V 300Ah requires minimal maintenance:
- Installation: Mount on a level surface in a ventilated area. Ensure terminals are tight and anti-corrosion washers are installed.
- Monthly inspection: Check terminal connections for tightness and corrosion. Clean with baking soda solution if needed.
- Voltage monitoring: Monthly resting voltage check: 2.15–2.18V per cell (12.9–13.1V per 6-cell 12V unit) indicates full charge.
- Charging: Bulk/absorb: 14.1–14.4V per 12V unit. Float: 13.5–13.8V. Temperature compensation: -4mV/degC per cell.
- Storage: Fully charge before storage. Recharge every 6 months to prevent sulfation.
6. Market Prospects and Industry Trends
The global market for stationary lead-acid batteries continues to grow, driven by several key trends that position the CHISEN OPzV 2V 300Ah for strong demand:
- Renewable energy expansion: Solar installations worldwide require reliable energy storage, with OPzV technology the proven choice for large-scale solar-plus-storage.
- Telecom infrastructure growth: 5G rollout globally demands more backup power, creating sustained demand for 300Ah class batteries.
- Energy security concerns: Grid instability in emerging markets drives adoption of battery backup for critical infrastructure.
- Environmental regulations: OPzV technology meets evolving environmental standards with OPzV recyclable materials and leak-proof designs.
CHISEN Battery’s 8 global factories and 70 million kVAh annual capacity ensure reliable supply to distributors and EPC contractors worldwide. Our OPzV 2V 300Ah battery is available with CE, ISO9001, ISO14001, and TUV Rheinland certifications.
Need a Quote on CHISEN OPzV 2V 300Ah?
CHISEN Battery manufactures OPzV 2V batteries in all capacities from 100Ah to 3000Ah. Contact our sales team for specifications, pricing, and lead times.
| Factory | 8 global factories | 70M kVAh/year |
| Certifications | CE, ISO9001, ISO14001, TUV Rheinland |
| Tel | +86 131 2666 8999 |
| jack@chisen.cn | |
| Web | www.chisen.cn |
Download OPzV 2V 300Ah Official Spec Sheet (PDF)