- Designed floating charging service life: 12 years (25ºC)
- Safety valve installation for explosion proof, Sealed and maintenance free operation
- By using strong grids, high purity lead and patented Gel electrolyte
- Extremely low self-discharge characteristic
- Wide operating temperature range from -20ºC~55ºC
- Lead Aluminum calcium Tin alloy high energy, prevent corrosion
![ROCKET GEL Deep Cycle Battery — ESR200-12 [12V 200Ah]](https://ankker.com/wp-content/uploads/2026/09/12v200ah.png)
![ROCKET GEL Deep Cycle Battery — ESR12-200 [GEL 12V200Ah]](https://ankker.com/wp-content/uploads/2026/09/GEL_12-200_rocket-300x300.png)
![ROCKET VRLA AGM Battery — ESC200-12 CFR [12V 200Ah]](https://ankker.com/wp-content/uploads/2026/09/ESC200-12-CFR-12V200Ah-300x300.png)
![ROCKET VRLA AGM Battery — ESR55-12 [12V 55Ah]](https://ankker.com/wp-content/uploads/2026/09/12v55ah-300x300.png)
![ROCKET VRLA AGM Battery — ESR12-1.3 [12V 1.3Ah]](https://ankker.com/wp-content/uploads/2026/09/12v1.3ah-300x300.png)
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