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Weida HX12-18 (12V18Ah) Battery
The HX12-18 is a high-performance 12V 18Ah battery designed for reliable power supply in a wide range of applications, from backup systems to mobility devices. Its robust construction ensures long-lasting durability and consistent energy output.

Weida HX12-18 (12V18Ah) Battery
$83.55 Excl. GST
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- Description
- Specification
Description
The HX12-18 (12V18Ah) is a high-capacity, sealed lead-acid battery designed to deliver reliable and consistent power for a wide range of applications. With its robust construction and maintenance-free design, it provides long-lasting performance and durability, making it ideal for UPS systems, solar energy storage, emergency lighting, and electric mobility devices. Its stable voltage output and extended service life ensure dependable operation even in demanding conditions.
Key Features:
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Voltage & Capacity: 12V, 18Ah for extended runtime.
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Maintenance-Free: Sealed design, no need for regular water topping.
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High Reliability: Stable performance in varied temperatures and conditions.
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Long Service Life: Durable design suitable for repeated charge/discharge cycles.
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Wide Application: Ideal for UPS, solar systems, emergency lighting, and electric vehicles.
12 V 18 Ah SLA/AGM Battery
| Specification | Typical Value / Range |
|---|---|
| Nominal Voltage | 12 V |
| Nominal Capacity (20‑hr rate) | 18 Ah |
| Capacity at other discharge rates* | ~17.0 Ah (10-hr), ~15.0–15.5 Ah (5-hr), ~10.8–11.7 Ah (1-hr) |
| Battery Type | Valve-Regulated Lead-Acid (VRLA) / AGM, sealed, maintenance-free |
| Dimensions (L × W × H) | ~181 mm × 76–77 mm × 167 mm (total height) |
| Weight | ~5.2 kg – 5.7 kg (varies by manufacturer tolerance) |
| Internal Resistance (fully charged, 25 °C) | ~12–16 mΩ typical |
| Maximum Discharge Current (short-term, e.g. 5s/5sec) | ~180 A – 270 A depending on design |
| Operating Temperature Range | Discharge: approx. –15 °C to +50 °C; Charge: around –15 °C to +40/50 °C; Storage: around –20 °C to +40/50 °C depending on spec sheet |
| Recommended Charge Voltage (at 25 °C) | Cycle use: approx. 14.4–15.0 V; Float/Standby: approx. 13.5–13.8 V. Temperature compensation recommended (≈ –3 to –5 mV/°C per cell) |
| Typical Applications | UPS, emergency lighting, security/alarm systems, solar backup, mobility devices, telecom/equipment backup, general‑purpose DC power systems |
*Capacity at different “hour‑rates” (10 hr, 5 hr, 1 hr) declines because higher current draw reduces usable capacity — a standard behavior for SLA/AGM batteries.



