Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery Review

Manufacturer price at the time of writing. We may earn a commission, which never changes what the figures say.

Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery specifications

Manufacturer figures, gathered so you can read them against everything else we track rather than against the marketing page they came from.

What the Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery actually adds

This is an expansion pack, not a power station. It carries cells and nothing else: no inverter, no AC outlets, no screen. It attaches to a host unit from the same range, which supplies the inverter and the outlets, and the pair behave as one larger unit. That is the reason expansion packs are worth understanding before you buy the base unit: capacity bought this way is almost always cheaper per watt-hour than a second complete station, because you are not paying twice for an inverter you already own. The trade is that the pack is useless on its own, and it locks you into one manufacturer for as long as you keep the system.

Where the Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery sits in its band

We track 22 priced units in the 12v 48v deep-cycle batteries band, running from $89.99 to $3,459.99. At $299.99 the Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery is the 9 cheapest of 22. Because Renogy does not publish a capacity for this model, we cannot rank it on cost per watt-hour, which is the measure we would normally lead with. Price position on its own tells you where it sits in the range but not whether it is good value, and those are genuinely different questions.

Alternatives to the Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery

Units we track in the same band that are close enough to be genuine substitutes, matched on price. Each links to its own review.

• Renogy Refurbished 12V 100Ah Core Series Deep Cycle Lithium Iron Phosphate Battery review — 96,000Wh, listed at $294.99, $0 per watt-hour.
• Pecron WB12200 Lithium 12V 200Ah Deep Cycle LiFePO4 Battery review — 2,560Wh, listed at $399, $0.16 per watt-hour.
• Renogy 12V 50Ah Deep Cycle Lithium Iron Phosphate Battery review — 640Wh, listed at $196.99, $0.31 per watt-hour.
• OUPES LFP121 12V 108Ah LiFePO4 Lithium Deep Cycle Battery review — 22,000Wh, listed at $149, $0.01 per watt-hour.

Who the Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery suits

This suits someone who already owns the matching host unit and has found its capacity short, usually after a first real outage rather than before one.

It is the wrong purchase if you do not already own a compatible station, and it is the wrong purchase if what you actually need is more output rather than more capacity: adding cells does not raise the inverter rating, so a load the host could not carry before still cannot be carried.

What to check before you buy

• Confirm the exact host model and generation. Expansion packs from the same manufacturer frequently do not cross generations, and the naming rarely makes that obvious.
• Check whether the host needs a firmware update before it will recognise the pack, and whether that update can only be applied through the manufacturer app.
• Work out the cost per watt-hour of the pack against simply buying a second complete station. The pack usually wins, but not always, and a second station gives you redundancy a pack cannot.

Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery questions

Can the Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery be charged by solar?

Renogy does not publish a maximum solar input for this model. Rather than estimate one, we leave it out. Check the manual that ships with the unit before buying panels for it.

What warranty does the Renogy Refurbished 12V 100Ah Smart Lithium Iron Phosphate Battery carry?

Renogy covers it for 5 years, and rates the cells for 4,000 charge cycles. Cycle life and warranty are different promises, and the cycle figure is the one that tells you how long the pack stays useful.

What is not published

Renogy does not state the watt-hour capacity, which is the single figure runtime depends on, the maximum solar input, the continuous AC output for this model. We list figures rather than estimate them, so those rows stay empty until the manufacturer publishes them. If you need one of them to make the decision, ask Renogy directly and hold them to the answer.

How we assess these

Every figure on this page comes from the manufacturer, and every derived number, cost per watt-hour and estimated runtime, is calculated the same way for all 437 products we track. That is what makes the comparison meaningful: we are not scoring units against a private impression of them, we are putting published figures side by side and doing the arithmetic in public. Where a manufacturer stays quiet, we say so rather than filling the gap.