Black FridayDealsBuying guidesBrandsStoresTermsPrivacydeal.ai apps

© Deal.ai Inc.

Deal.ai
SigmasTek
SigmasTek 12V 100Ah SLA Battery

SigmasTek 12V 100Ah SLA Battery

4.5· 12 ratings

Last price we saw

$129.98at BatterySharks.com, last seen Oct 31

Prices change often: ask the agent below to check today's price at every store.

Prices are checked against each store and labelled with when.

Ask our shopping agent

Enter to send, Shift+Enter for a new line

Our take on the SigmasTek 12V 100Ah SLA Battery

The SigmasTek 12V 100Ah SLA battery is a sealed lead-acid block for backup power, solar setups, trolling motors and mobility scooters. It uses absorbed glass mat construction, so it is spill-proof and can be mounted on its side. The internal-thread terminals take bolted connections and it carries a 12-month warranty. It is a budget-tier battery, so expect a shorter service life than premium AGM brands.

Best forBackup power for sump pumps and alarmsSmall off-grid solar systemsTrolling motors on small boatsMobility scooters and electric carts
Pros
  • 100Ah at 12V gives about 1,200Wh of stored energy
  • Sealed AGM design is spill-proof and low-maintenance
  • Internal-thread terminals hold bolted lugs securely
  • Can be mounted on its side or upright
  • 12-month warranty backs the purchase
Cons
  • Lead-acid is heavy, roughly 60-70 lb
  • Shorter cycle life than lithium or premium AGM batteries
  • Internal-thread terminals need the right bolts; no standard posts included
  • No built-in battery management or low-voltage cutoff

SigmasTek 12V 100Ah SLA Battery prices at every store

  • BatterySharks.comCheck price at BatterySharks.com

SigmasTek 12V 100Ah SLA Battery price history

Lowest price we've seen: $129.98 on Oct 31 at BatterySharks.com. Tracked across 1 store since Oct 31.

What reviewers say

With only 12 ratings at 4.5 out of 5, feedback is thin but positive. Buyers mainly use it for backup and small solar setups and report it works as expected for the price.

Pros
  • Arrives charged and ready to use
  • Holds voltage well in backup duty
  • Good value for the capacity
Cons
  • Heavy to move into place
  • Terminal bolts not always included

Specifications

Length (In.)
12
Voltage
12 Volts
Amp Hours
100 Ah
Terminal Type
Internal Thread*
Warranty
12 Months

Questions and answers

Is this battery worth it for a sump pump backup?
Yes, if you need a low-cost 12V block for short outages. A 100Ah battery runs a typical 1/2 HP sump pump for only a couple of hours, so size your backup for the outage length you expect.
Can I use it for solar storage?
It works for small off-grid systems, but flooded and AGM lead-acid batteries last fewer cycles than lithium. Keep depth of discharge around 50% to get reasonable life.
What terminals does it have?
It has internal-thread terminals, so you bolt lugs directly to the battery. Check the thread size before ordering and buy the matching bolts if they are not included.
How long will it last?
Expect roughly 3 to 5 years in float or backup service and fewer in daily cycling. The warranty runs 12 months from purchase.
Can it be mounted on its side?
Yes. The sealed AGM construction allows side mounting, but keep the terminals accessible and protect them from shorting.
Does it come charged?
Sealed lead-acid batteries usually ship with a partial charge. Charge it fully before first use, especially if it has been in storage.
What do buyers say about the SigmasTek 12V 100Ah SLA Battery?
Rated 4.5 out of 5 from 12 ratings.