# GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System

# GSIKE 12.8V 100Ah LiFePO4 Battery — 1280Wh, 100A BMS, 6000 Deep Cycles, IP65, for RV, Solar & Trolling Motor, Free EU Shipping

**The GSIKE 12.8V 100Ah LiFePO4 battery stores 1280Wh of deep-cycle power in a 9.8kg ABS case — a 100A BMS, 6000 cycles at 80% depth of discharge, a 14.4V CC/CV charge profile and IP65 protection give it roughly twice the usable energy of a 12V 100Ah lead-acid battery at about one third of the weight, expandable up to a 16-unit / 20.48kWh bank and sold across Europe at €159.99 with free delivery and a 30-day return window.**

1280 Wh 100 Ah 100A BMS 6000 cycles 400A pulse / 1s 14.4V CC/CV IP65 M8 terminals up to 20.48 kWh bank

![GSIKE 12.8V 100Ah LiFePO4 battery, matte-black ABS case with blank dark-orange front plate and two silver M8 bolt terminals on top, front view of the unit](https://cdn.shopify.com/s/files/1/0729/3042/7041/files/12.8v-100h.webp?v=1781229409)

**What this product is (and is not).** This is a **battery**, it stores and releases 12-volt DC power. It is **not** a charger, not a solar charge controller and not an inverter: it has no built-in mains wall outlet and no AC output. To charge it you need a lithium-capable charger or solar controller set to **14.4V ±0.2V CC/CV**, and to run 230V appliances you connect it to a separate 12V inverter.

Parameter

Value (manual model GSK-12.8V-100AH)

Chemistry / nominal voltage

LiFePO4 (LFP), **12.8 V** nominal (4 cells in series)

Rated capacity / energy

**100 Ah / 1280 Wh** (12.8V × 100Ah)

Continuous current

**100 A charge / 100 A discharge** (max continuous power 1280 W)

Pulse / peak

**400 A for 1 second only** (inrush / startup; not a continuous figure)

BMS

**100 A BMS** — over-charge, over-discharge, over-current, over-temperature and short-circuit protection

Cycle life

**6000 cycles at 80% DoD** (about 5000+ at full 100% DoD)

Expansion

**4P4S = 16 units = 20.48 kWh** (4S = 51.2 V, 4P = 400 Ah)

Terminals

**M8 bolt terminals** (8 mm bolt / 12 mm nut)

Housing / ingress

ABS housing, **IP65**; CE, RoHS, UN38.3 certified

Weight / size

Net **9.8 kg** (gross 10.35 kg); **315 × 215 × 280 mm** (L×W×H)

Self-discharge

Less than 3% per month

Warranty / design life

**3-year warranty**; ~10-year design life

Price / stock

**€159.99 EUR** · In stock, new condition, valid from 2026-07-06 (no EUR regular price, so no strike-through)

Delivery / returns

Free shipping to 15 European countries (1–3 days handling + 2–7 days transit) · 30-day returns

## LiFePO4 vs lead-acid / AGM (like-for-like 12V 100Ah)

Same nominal 12V and 100Ah, very different usable energy. Because LiFePO4 safely delivers close to its full capacity while flooded lead-acid is typically limited to about 42% depth of discharge, **one GSIKE 12.8V 100Ah replaces two 12V 100Ah lead-acid batteries wired in parallel** (same 12V — never in series, which would make 24V).

Metric

GSIKE 12.8V 100Ah LiFePO4

Typical 12V 100Ah lead-acid / AGM

Nominal energy

**1280 Wh**

~1280 Wh nameplate

Usable energy (DoD)

**~1216–1280 Wh** (~95–100% usable)

**~504 Wh** (limited to ~42% DoD for longevity)

Cycle life

**6000 cycles @80% DoD**

~500 cycles

Weight

**9.8 kg net**

~28.6 kg

Real energy density

**130.6 Wh/kg** (1280 ÷ 9.8)

~44 Wh/kg

Maintenance

None (no watering, no equalisation)

Watering / venting / equalisation

Replacement ratio

**1 GSIKE = 2 × 12V 100Ah lead-acid IN PARALLEL** for the same usable Ah at 12V

## Charge settings & operating temperatures

Item

Specification

Charge method

**CC/CV** (constant current, constant voltage)

Charge voltage

**14.4 V ±0.2 V** (the physical unit label prints 14.6V = 14.4 + 0.2, consistent)

Recommended charge current

**20 A (0.2C)**; the BMS allows up to 100 A continuous charge

Discharge cut-off

**10 V** end-of-discharge cut-off (per the unit label)

Internal resistance

≤20 mΩ

Charge temperature

**0 °C to 50 °C** (the BMS stops charging around 55 °C; **do not charge below 0 °C**)

Discharge temperature

**−20 °C to 60 °C**

Storage temperature

**−10 °C to 50 °C**; store at ~50% charge, self-discharge <3%/month

## Expansion — 4P4S up to 20.48 kWh

The battery supports parallel and series building. **4P4S** means four units in parallel × four in series: **16 units total = 20.48 kWh**. 4S raises the voltage to **51.2 V**; 4P raises the capacity to **400 Ah** (51.2 V × 400 Ah = 20,480 Wh).

Configuration

Voltage

Capacity

Energy

Units

1P1S (single)

12.8 V

100 Ah

1.28 kWh

1

2P1S

12.8 V

200 Ah

2.56 kWh

2

2P2S

25.6 V

200 Ah

5.12 kWh

4

4P2S

25.6 V

400 Ah

10.24 kWh

8

**4P4S (max)**

**51.2 V**

**400 Ah**

**20.48 kWh**

**16**

**Matching rule:** when wiring units in series or parallel, use batteries that are identical in model and at a similar state of health — matched within about one month of production / charge history. Do not mix new and heavily-used units in one bank. Always follow the 10 V cut-off and the 14.4V charge profile for the whole bank.

## Expected runtime by load (1280 Wh ÷ load)

Ideal DC runtimes at 12.8 V, before derating. When running through a 12V inverter, apply roughly 90–95% inverter efficiency and a usable depth of discharge for real-world figures.

Load

Example use

Runtime (1280 Wh)

50 W

LED lights + phone charging

**25.6 h**

100 W

Laptop + lights + fan

**12.8 h**

120 W

Router + lights + small fan

**10.67 h**

300 W

Compressor fridge

**4.27 h**

500 W

Fridge + TV + fan

**2.56 h**

600 W

Fridge + TV + lights + charger

**2.13 h**

800 W

Fridge + microwave (intermittent)

**1.6 h**

1000 W

Higher DC / inverter load

**1.28 h**

## Pros & cons

### Pros

-   **1280 Wh at ~100% usable DoD** with a **100A BMS** and **6000 cycles @80% DoD** — one unit replaces two 12V 100Ah lead-acid batteries in parallel and lasts roughly 10× longer.
-   **Light and compact:** 9.8 kg net in a 315×215×280 mm IP65 ABS case — easy to lift into a motorhome locker, boat locker or shed shelf.
-   **100A continuous charge/discharge** with a **400A one-second pulse** handles fridge and trolling-motor inrush without voltage sag.
-   **Expandable to 20.48 kWh** (4P4S, 16 units, 51.2 V / 400 Ah) so a single starter unit can grow into a whole off-grid bank.
-   **€159.99** undercuts every verified branded EU-store 12V 100Ah leisure battery — LiTime H190 (€275.99), Power Queen (€239.99), ECO-WORTHY (€229.99) and the Renogy range (€362.99–678.99) — with free EU shipping and 30-day returns.
-   Real buyer rating **4.9 / 5 from 8 reviews**, praising the weight saving, weekend fridge runtime and the 100A trolling-motor output.

### Cons

-   **Needs a lithium 14.4V charger.** A legacy lead-acid charger (float 13.5–13.8V, no CC/CV LiFePO4 mode) will not fully charge it — use a LiFePO4 / lithium-capable charger or solar controller set to 14.4V ±0.2V.
-   **Match units for series/parallel.** Bank building requires identical units at a similar state of health (within ~1 month of production / charge history); never mix new and worn cells in one bank.
-   **Not for golf carts.** This is a 12V leisure / deep-cycle battery — it is not rated for the high continuous draw of a golf-cart drive system.
-   **It is not a charger and not an inverter.** No built-in charger, no mains outlet — you supply both the charge source and a separate 12V inverter for 230V appliances.
-   **Do not charge below 0°C.** Charge window is 0–50°C; unlike some self-heating rivals, it has no low-temperature charging function (discharge works down to −20°C).
-   **3-year warranty vs ~10-year design life.** The rated warranty is 3 years even though the design life is ~10 years at light use; rivals like the Renogy Core are also rated 150A continuous vs this unit's 100A.

## Where this battery fits — real European use cases

![Under-seat locker compartment of a modern German motorhome, a compact matte-black blank-plate LiFePO4 battery box strapped in with two silver M8 bolt terminals, tidy black cables and soft daylight](https://aka.doubaocdn.com/s/7P3aEDRGDN)

### RV / motorhome

Strapped into a motorhome under-seat locker, it runs the fridge, lights and chargers for days — the ~9.8 kg weight saving also helps fuel economy.

![Open bow storage locker of a small blue-and-white fishing boat on a calm Dutch lake, a compact matte-black blank-plate LiFePO4 battery box fitted inside, electric trolling motor softly out of focus at the stern](https://aka.doubaocdn.com/s/rwXmN5JbZr)

### Trolling motor / boat

The constant 100A discharge gives an electric trolling motor full thrust without sag — buyers report a full day of fishing on one charge.

![Tidy European campsite at golden hour, a compact matte-black blank-plate LiFePO4 battery box on a wooden camp table beside a small grey portable compressor fridge, warm sunset light](https://aka.doubaocdn.com/s/rlXwh2fl5x)

### Weekend camping

On a camp table beside a portable fridge, it powers fridge, lights and phones for a whole weekend before needing a charge.

![Interior of a small off-grid garden shed in rural France, a compact matte-black blank-plate LiFePO4 battery box on a wooden shelf with small dark solar panels visible through the window](https://aka.doubaocdn.com/s/W6qgOJq3ru)

### Solar off-grid shed

Mounted on a shed shelf, it stores energy from a small solar array and cycles daily — the IP65 case shrugs off damp workshop air.

![Tidy home utility closet in a small European apartment, a compact matte-black blank-plate LiFePO4 battery box on a shallow white wall shelf next to a plain grey fuse box, neatly routed cables](https://aka.doubaocdn.com/s/GVDaNnvKF3)

### Home backup

Kept in a utility closet, it carries lights, the router and a few essential appliances through an evening outage, and grows into a larger 20.48 kWh bank later.

![Cozy Scandinavian camper-van interior, a compact matte-black blank-plate LiFePO4 battery box on a light wooden bench shelf with a small potted plant and white linen curtains, green meadow outside](https://aka.doubaocdn.com/s/lcU9ogpzI8)

### Caravan / camper van

On a caravan bench shelf it supplies lighting, the charger and the small kitchen loads for a static pitch — no maintenance, no venting.

![Small rustic Nordic log cabin in a Swedish pine forest at dusk, a compact matte-black blank-plate LiFePO4 battery box on a pine plank shelf under a warm pendant lamp](https://aka.doubaocdn.com/s/hHpUjMQDZB)

### Forest retreat

A remote cabin relies on it for warm light, a kettle and a phone after the panels stop generating at dusk.

![Compact matte-black blank-plate LiFePO4 battery box standing on a worn wooden garage workbench in a tidy Dutch home workshop, hanging tools softly blurred behind](https://aka.doubaocdn.com/s/sJx7J5Vo41)

### Workshop / garage

On a workbench it runs bench lighting, a 12V pump and a charger off-grid — the 10V cut-off protects the cells from deep drains.

## Shipping & returns

Policy point

Detail

Price

€159.99 EUR · In stock, new condition

Free delivery to

Europe

Handling / transit

Handling 1–3 days + transit 2–7 days, shipping rate EUR 0

Returns

30-day return window from delivery, by post, in original condition and packaging

Return cost

Return shipping is handled by the merchant; original import duties and taxes are non-refundable

## Frequently asked questions

Can I replace two 12V 100Ah lead-acid batteries with this one GSIKE unit?

Yes, for the same usable 12V capacity. One GSIKE 12.8V 100Ah delivers ~1216–1280 usable Wh at ~95–100% depth of discharge, whereas a 12V 100Ah flooded lead-acid is limited to about 42% DoD — roughly 504 usable Wh. So one GSIKE replaces two 12V 100Ah lead-acid batteries wired in parallel (same 12V). Do not wire them in series, which would produce 24V and is a different system.

What charger do I need — will my old lead-acid charger work?

You need a lithium / LiFePO4-capable charger or solar controller set to CC/CV at 14.4V ±0.2V, with a recommended charge current of 20A (0.2C; the BMS allows up to 100A). A legacy lead-acid charger that only floats at 13.5–13.8V without a LiFePO4 charge profile will not fully charge this battery. The battery itself is not a charger — it only stores and releases power.

Can I charge it in winter or below freezing?

No — the charge window is 0°C to 50°C and the BMS stops charging around 55°C. Do not charge below 0°C. Discharge works down to −20°C, and storage should be between −10°C and 50°C at roughly 50% charge. Unlike some self-heating competitors, this unit has no low-temperature charging function, so warm the space before charging in cold weather.

How long will it run my fridge, lights and laptop?

Based on 1280 Wh divided by the load: a 50W LED/phone load runs ~25.6h, a 100W laptop-and-lights load ~12.8h, a 120W router-and-fan load ~10.67h, a 300W compressor fridge ~4.27h, a 500W fridge+TV+fan load ~2.56h, a 600W load ~2.13h, an 800W load ~1.6h and a 1000W load ~1.28h. When running through a 12V inverter, derate by about 90–95% inverter efficiency and leave headroom on depth of discharge.

Can I wire several batteries together — series or parallel, and how many?

Yes. The maximum configuration is 4P4S: four in parallel times four in series = 16 units, giving 51.2V and 400Ah for 20.48 kWh. When building a bank, use units that are identical in model and matched within about one month of production / charge history; do not mix new and heavily-used units, and keep the whole bank on the 14.4V charge profile with the 10V cut-off.

Is this battery itself a charger or an inverter?

No. It is an energy-storage battery — it stores 12-volt DC power and releases it. It has no built-in charger and no built-in inverter, so it has no mains AC outlet. To charge it you need a 14.4V LiFePO4 charger or solar controller; to run 230V appliances you connect a separate 12V inverter. The 400A rating is a one-second pulse for startup inrush, not a continuous output.

Will this battery work for a golf cart?

No. This is a 12V leisure / deep-cycle battery rated for RV, camper, caravan, boat/trolling-motor, camping, off-grid solar and home-backback use. It is not designed for the high continuous drive-current profile of a golf cart. Choose a purpose-built traction battery for that application.

What does the 100A BMS actually protect against?

The built-in 100A BMS guards against over-charge, over-discharge, over-current, over-temperature and short-circuit events, with the discharge cutting off around 10V. It allows 100A continuous charge and 100A continuous discharge, and a 400A pulse for one second to absorb motor or fridge startup inrush without sagging. Self-discharge stays under 3% per month.

What terminals and cables does it use?

It uses M8 bolt terminals (8 mm bolt, 12 mm nut). Fit ring (lug) terminals sized for your cable current and keep runs short to limit voltage drop — especially at 12V, where high currents make cable thickness matter. For a 16-unit 51.2V / 400Ah bank, follow the matched-battery wiring guide and the 14.4V charge profile.

What about the warranty, shipping and returns?

The price is €159.99 EUR, in stock and new. Shipping is free to 15 European countries (GB, DE, FR, IT, ES, NL, BE, AT, SE, DK, FI, IE, PT, PL, CZ) with 1–3 days handling plus 2–7 days transit, and returns run for 30 days by post. The warranty is 3 years against a ~10-year design life, so the covered period is shorter than the expected service life at light use — factor that into your total-cost-of-ownership plan.

## Guides & comparisons

Go deeper before you buy:

[Best 12V 100Ah LiFePO4 batteries in Europe 2026 (6 models ranked)](https://gesike.com/blogs/news/best-12v-100ah-lifepo4-batteries-in-europe-2026-gsike-vs-litime-renogy-redodo-power-queen)

[GSIKE vs LiTime vs Renogy 12V 100Ah head-to-head](https://gesike.com/blogs/news/gsike-12-8v-100ah-vs-litime-vs-renogy-the-european-12v-100ah-lifepo4-head-to-head)

[LiFePO4 vs lead-acid/AGM: Wh, usable DoD, cycles and weight](https://gesike.com/blogs/news/12v-100ah-lifepo4-vs-lead-acid-agm-for-rv-solar-boat-in-europe-with-gsike-wh-usable-dod-cycles-weight)

[Sizing & connecting a 12V LiFePO4 bank: series/parallel, 14.4V charger, BMS](https://gesike.com/blogs/news/how-to-size-connect-a-12v-lifepo4-battery-bank-in-europe-with-gsike-series-parallel-4p4s-14-4v-charger-bms)

 

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## Details

- **Price:** 159.99 EUR
- **Vendor:** GSIKE
- **Type:** LiFePO4 Battery
- **Tags:** Original

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 159.99 EUR | In stock |

## Images

- GSIKE 12.8V 100Ah LiFePO4 Battery 1280Wh, 100A BMS
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System
- GSIKE 12.8V 100AH Lithium Energy Storage Battery for Solar Power System

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> Source: [Gsike](https://gesike.com/products/gsike-power-12-8v-100ah-lithium-energy-storage-battery-for-solar-power-system)
> Updated: 2026-10-19