FS: 4x 100Ah AGM batteries — still holding charge

Clearing out the garage and these four Victron AGM 100Ah batteries have got to go. Purchased them about five years ago for a static caravan setup that never quite happened — typical project creep, you know how it is.

Condition: They're still holding charge brilliantly, which honestly surprised me given they've been sat in my shed. I've not tested them under proper load recently, but they respond well to the charger and hold voltage overnight. No obvious damage, terminals are clean, no corrosion worth mentioning.

Why I'm selling: Finally committing to a lithium system instead (LiFePO4), so these need to find a new home. They're solid batteries but weighty — proper job moving them about, which is partly why I'm reluctant to shift them far.

Asking price: £400 for the lot. I've seen similar going for £120-150 each online, so that's realistic for four that are proven to still work rather than a gamble on used stock.

Collection only from Greater Manchester — I'm not posting these, they're too heavy and the courier costs would be mental. Happy to let someone test them before taking them away if you're local and want to bring a charger round.

Are they what you're after, or is anyone looking for something similar? Also interested if anyone's upgraded from AGM to lithium recently — did you reckon the jump was worth it?

Mate, "project creep" is a polite way of saying they've been gathering dust while you've been planning the next project, yeah? Been there.

Five years on AGMs is decent though — they hold their charge better than my motivation for finishing anything. What's the asking price? And more importantly, are they actually balanced, or is one of them the dead

Four AGM batteries from five years ago? That's basically a museum exhibit at this point, mate — still holding charge though, fair play. I'd snap these up for my shepherds hut backup system if I wasn't already drowning in Lifepo4 (learned that lesson the hard way). AGMs are proper workhorses though, none of that temperamental lithium nonsense, just honest reliability. Only downside is they'll weigh about as much as a small car when you're loading them into a van. What's the asking price looking like?

Those Victron AGMs are proper workhorses — if they're genuinely still holding charge after five years sat idle, that says something about the build quality. I'd be curious what the voltage reads under load though; AGMs can be deceptive about state of health until you actually ask them to do something.

I've got three 100Ah LiFePO₄s in my shepherd's hut setup now, but I kept two old AGMs as a static backup specifically because they're bulletproof for emergency situations. The chemistry might not be fashionable anymore, but there's something reassuring about a battery that doesn't need babysitting with a Victron SmartBMS.

Real question: what's the asking price? The second-hand battery market's gotten daft lately, but five-year-old Victrons in working order aren't a hard sell if they're priced sensibly. Someone doing a static setup or looking for dumb battery reliability would snap these up — way better than the budget Chinese stuff floating about.

Fair play for shifting them. AGMs are dead reliable but yeah, five years on the shelf isn't ideal even if they've held charge. The real question is — what's the voltage sitting at right now? If they're genuinely at 12.6V+ on each cell, you'll have no trouble selling them.

I run three 200Ah Victron AGMs in my setup and they're rock solid, but I've seen too many people buy "barely used" batteries that turn out to be sulphated to buggery. Do yourself a favour and test them properly before posting the ad — load test, not just open circuit voltage. Buyers will ask anyway.

Also worth noting: five year old AGMs aren't what they used to be in terms of cycle rating, so pricing them as fresh stock would be dodgy. Be upfront about the age and storage conditions. Honestly, if they genuinely held charge all that time, that's your selling point right there — most stuff doesn't.

Where abouts are you? Postage on four 100Ah units is going to be a nightmare.

Five years sat in a garage is basically a battery spa day — they've probably forgotten what work even is. That said, if they're genuinely holding charge, someone's getting a proper bargain for a static setup or backup bank. Just make sure whoever buys them runs them through a proper charge cycle first rather than lobbing them straight into their system and wondering why the Victron BMS is having an existential crisis. AGMs are forgiving but not that forgiving.