Power-Sonic

Power-Sonic 12V AGM Deep Cycle Batteries

Power-Sonic has supplied sealed battery solutions worldwide since 1970, with a focus on consistent manufacturing and strict quality control. This collection carries the Power-Sonic 12V AGM deep cycle range, from a compact 48Ah unit to a high-capacity 268Ah battery. They suit caravans, motorhomes, boats, 4WD setups, off-grid cabins and standby power systems.

AGM (absorbent glass mat) batteries are a type of valve regulated lead acid (VRLA) battery, also known as sealed lead acid (SLA). The electrolyte is held in glass mat separators, so the batteries are sealed and maintenance-free. You never need to top up the water. Deep cycle construction is designed for repeated discharge and recharge, which is how house, auxiliary and backup batteries are used.

Choosing the Right Power-Sonic Battery Capacity

Every battery in this range is 12V, so your main decision is amp-hour (Ah) capacity. Base it on your daily energy use, how many days you need between charges, and the space and weight your installation can take:

• 48Ah and 59Ah: compact options for small auxiliary systems, portable power boxes, fridges on short trips and light backup duties
• 80Ah: a mid-size choice for weekend camping, small boats and modest 12V loads
• 105Ah, 125Ah and 128Ah: popular capacities for caravan and RV house batteries, dual battery systems and marine auxiliary banks
• 215Ah and 268Ah: high-capacity batteries for larger off-grid systems, inverter loads, tiny homes and commercial standby applications

For longer battery life, keep AGM batteries away from deep discharges and recharge them promptly. Use a charger, DC-DC charger or solar regulator with an AGM charging profile. If you are weighing AGM against lithium, our guide to lithium vs lead-acid batteries compares usable capacity, weight, cycle life and upfront cost.

Frequently Asked Questions

Are Power-Sonic AGM batteries suitable for caravans and boats?

Yes. Their sealed, maintenance-free AGM design suits caravan, RV and marine house battery applications, where the batteries are regularly cycled to run lights, pumps, fridges and electronics.

Do I need a special charger for an AGM battery?

Use a charging source with an AGM or sealed lead acid setting. Correct charge voltages help prevent undercharging or overcharging, both of which can shorten battery life.

Can I connect Power-Sonic batteries together for more capacity?

Batteries can be wired in parallel to increase capacity, or in series for higher voltage systems. For best results, use batteries of the same model, capacity and age.

Does this collection include Power-Sonic lithium batteries?

This collection currently features Power-Sonic 12V AGM deep cycle batteries. For background on the full manufacturer range, see the Power-Sonic manufacturer's website.

Ready to upgrade your 12V system? Compare the Power-Sonic AGM capacities above and choose the battery that matches your daily load and available space. You will get dependable, maintenance-free deep cycle power for your next trip, voyage or backup installation.