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WattCycle
WattCycle 12V 100Ah Mini LiFePO4 Battery Bluetooth 5.12kWh System (4x 100Ah + 6.5kW Inverter)

WattCycle 12V 100Ah Mini LiFePO4 Battery Bluetooth 5.12kWh System (4x 100Ah + 6.5kW Inverter)

4.2· 396 ratings

Last price we saw

$1,499.99at WattCycle, last seen Oct 31

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Our take on the WattCycle 12V 100Ah Mini LiFePO4 Battery Bluetooth 5.12kWh System (4x 100Ah + 6.5kW Inverter)

This is a four-battery bundle of WattCycle's 12V 100Ah Mini LiFePO4 batteries paired with a 6.5kW inverter, sold as a 5.12kWh off-grid or backup system. Each battery is compact at 9.0 x 5.6 x 8.2 inches, IP65 rated, and has Bluetooth for monitoring from a phone. The Mini line is known for fitting where a standard Group 31 does not. Pricing on the bundle moves with cell costs, so check the current quote against the recent range before buying.

Best forVan and camper builds with tight battery compartmentsSmall off-grid solar cabinsHome backup for a few critical circuitsDIYers who want Bluetooth monitoring
Pros
  • Compact footprint for a 100Ah LiFePO4 cell
  • IP65 rating suits damp compartments and outdoor enclosures
  • Bluetooth lets you check state of charge and cell balance
  • 5-year warranty on each battery
  • Inverter included, so the system is matched out of the box
Cons
  • Four batteries plus a 6.5kW inverter is a heavy, bulky shipment
  • Mini form factor can mean less internal room for cold-weather heating
  • Bluetooth app quality and range vary by phone
  • Inverter specs and surge rating are not detailed here

WattCycle 12V 100Ah Mini LiFePO4 Battery Bluetooth 5.12kWh System (4x 100Ah + 6.5kW Inverter) prices at every store

  • WattCycleCheck price at WattCycle

WattCycle 12V 100Ah Mini LiFePO4 Battery Bluetooth 5.12kWh System (4x 100Ah + 6.5kW Inverter) price history

Lowest price we've seen: $1,499.99 on Oct 31 at WattCycle. Tracked across 1 store since Oct 31.

What reviewers say

Owners of the WattCycle Mini line generally report solid capacity and easy Bluetooth setup, with the 4.2 rating reflecting mostly satisfied buyers. Complaints tend to center on app quirks and shipping condition rather than cell performance.

Pros
  • Capacity holds close to rating in bench tests
  • Small size fits tight spaces
  • Bluetooth monitoring is convenient
  • Build feels solid for the price
Cons
  • App can be slow to connect
  • Some units arrive with low state of charge
  • Cold-weather charging cutoff is conservative

Specifications

Dimensions (Inches)
9.0 (L) x 5.6 (W) x 8.2 (H)
Waterproof Rating
IP65
Warranty
5 years
Housing Material
ABS (Flame Retardant Plastic)
Terminal
M8 bolts

Questions and answers

Is this bundle worth it versus buying parts separately?
If you need four 100Ah batteries and a 6.5kW inverter, the bundle usually saves versus buying each piece alone. Compare the bundle price to four single Mini batteries plus a comparable inverter before deciding.
Can I use just one battery from the set?
Yes. Each battery is a standalone 12V 100Ah unit, so you can split the set across projects. Wire them in parallel for 12V 400Ah or in series for 48V, but keep the inverter's input voltage in mind.
Does the Bluetooth app work with iPhone and Android?
WattCycle's app is available for both platforms and shows state of charge, voltage, current and cell balance. Range is short, so you need to be within a few feet of the battery.
How does this compare to a standard-size 100Ah LiFePO4?
The Mini trades some internal volume for a smaller case, which can mean less room for heating and slightly lower continuous discharge limits. Check the BMS rating if you plan to run a large inverter load.
What is in the box?
You get four 12V 100Ah Mini batteries with M8 terminals and the 6.5kW inverter. Cables, fuses and mounting hardware are typically not included, so budget for those.
When is the price lowest?
LiFePO4 bundle prices tend to dip during seasonal sales and when cell prices fall. Track the price history and buy when it sits near the low end of its recent range.
What do buyers say about the WattCycle 12V 100Ah Mini LiFePO4 Battery Bluetooth 5.12kWh System (4x 100Ah + 6.5kW Inverter)?
Rated 4.2 out of 5 from 396 ratings.