Charged Reviews

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MARSTEK SATURN B2500-D

Model: B2500-D · SKU: MEG-B2500D

Prepared Nov 13, 2026

Common specifications

Total panel outputNot documented
Microinverter outputNot documented
Maximum output to outletNot documented
Battery capacity
2,240 WhSource [1, 2]
Plug typeNot documented
Safety listingNot documented
Enclosure volume18.93 L** Calculated from recorded external dimensions
Warranty term
10 yearsSource [1]

All recorded specifications

Battery capacity
2,240 WhDocumented claim
Conditions

Printed as "2240 Wh (50000 mAh/ 44.8 V)" in the manual; the page table prints "Capacity 2240Wh".

Location: User manual, Specifications, Capacity

Printed as "2240 Wh (50000 mAh/ 44.8 V)" in the manual; the page table prints "Capacity 2240Wh".

Location: User manual, Specifications, Capacity

[1, 2]
Battery voltage
44.8 VDocumented claim
Conditions

Printed inside the capacity figure as "50000 mAh/ 44.8 V".

Location: User manual, Specifications, Capacity

Printed inside the capacity figure as "50000 mAh/ 44.8 V".

Location: User manual, Specifications, Capacity

[1]
Charging temperature
0 to 50 °C32 to 122 °F convertedDocumented claim
Conditions

Printed as "0 - 50℃"; the manual also states "The product can be charged in a temperature range of 0℃- 50℃."

Location: User manual, Specifications, Charging Temperature

Printed as "0 - 50℃"; the manual also states "The product can be charged in a temperature range of 0℃- 50℃."

Location: User manual, Specifications, Charging Temperature

[1]
Chemistry
LiFePO₄Documented claim
Conditions

Printed as "LiFePO₄"; the manual prints "LiFePO4" in its Battery Cell row.

Location: Product page table, Cell Chemistry

Printed as "LiFePO₄"; the manual prints "LiFePO4" in its Battery Cell row.

Location: Product page table, Cell Chemistry

[2]
Communications
Bluetooth 5.2; Wi-Fi 2.4 GHzDocumented claim
Conditions

Printed as "BT5.2 + WIFI 2.4G".

Location: Product page table, Wireless

Printed as "BT5.2 + WIFI 2.4G".

Location: Product page table, Wireless

[2]
Cycle life
6,000 cyclesDocumented claim
Conditions

Printed as "6000times (25℃)"; the page table prints "6000+ Cycles to 80% Capacity".

Location: User manual, Specifications, Cycle times

Printed as "6000times (25℃)"; the page table prints "6000+ Cycles to 80% Capacity".

Location: User manual, Specifications, Cycle times

[1]
Dimensions
175 W × 350 H × 309 L mm6.89 W × 13.8 H × 12.2 L in convertedNeeds confirmationMARSTEK's SATURN-C B2500 user manual prints "309 x 175 x 350 mm" for the B2500-D; its B2500-D brochure prints "295*175*350mm". Both are kept as printed; the manual's value is shown first.
Conditions

Printed as "309 x 175 x 350 mm" without axis labels; recorded in the printed order.

Location: User manual, Specifications, Dimension

Printed as "309 x 175 x 350 mm" without axis labels; recorded in the printed order.

Location: User manual, Specifications, Dimension

[1]
Enclosure
IP65Documented claim
Conditions

As printed.

Location: User manual, Specifications, Waterproof

As printed.

Location: User manual, Specifications, Waterproof

[1]
MPPT trackers
2Documented claim
Conditions

Printed as "2 MPPT 1600W PV Input".

Location: Product page heading

Printed as "2 MPPT 1600W PV Input".

Location: Product page heading

[2]
Operating temperature
-10 to 50 °C14 to 122 °F convertedDocumented claim
Conditions

Printed as "-10 - 50℃" (second of the three temperature rows); the page table prints "Operating Temp. 14°F~122°F (-10°C~50°C)".

Location: User manual, Specifications, Operation Temperature

Printed as "-10 - 50℃" (second of the three temperature rows); the page table prints "Operating Temp. 14°F~122°F (-10°C~50°C)".

Location: User manual, Specifications, Operation Temperature

[1]
Rated capacity
50 AhCalculated50000 mAh / 1000 mAh/Ah
Conditions

Printed as "50000 mAh".

Location: User manual, Specifications, Capacity

Printed as "50000 mAh".

Location: User manual, Specifications, Capacity

[1]
Solar input limit
1,600 WDocumented claim
Conditions

Printed as "1600W Dual MPPT Input & 800W DC Output"; the manual and table print the PV input as "800W*2 Max." at 12V to 59V and 13.5A per input.

Location: Product page, dual MPPT section; manual PV Input

Printed as "1600W Dual MPPT Input & 800W DC Output"; the manual and table print the PV input as "800W*2 Max." at 12V to 59V and 13.5A per input.

Location: Product page, dual MPPT section; manual PV Input

[2]
Storage temperature
-10 to 55 °C14 to 131 °F convertedDocumented claim
Conditions

Printed in the order Storage, Operation and Charging Temperature as "-10 - 55℃ -10 - 50℃ 0 - 50℃"; the page table prints storage as -10°C~55°C.

Location: User manual, Specifications, Storage Temperature

Printed in the order Storage, Operation and Charging Temperature as "-10 - 55℃ -10 - 50℃ 0 - 50℃"; the page table prints storage as -10°C~55°C.

Location: User manual, Specifications, Storage Temperature

[1]
Weight
20 kg44 lb convertedDocumented claim
Conditions

Printed as "20±0.5 kg"; the page table prints "20±0.5kg".

Location: User manual, Specifications, Weight

Printed as "20±0.5 kg"; the page table prints "20±0.5kg".

Location: User manual, Specifications, Weight

[1]

Warranty

Warranty term
10 yearsDocumented claim
Conditions

Printed as "Product warranty period of 10 years." starting from the date of purchase by the consumer, with proof of purchase; the page states "The MARSTEK SATURN-C B2500 comes with a 10-year warranty."

Location: User manual, Warranty and Contact Information

Printed as "Product warranty period of 10 years." starting from the date of purchase by the consumer, with proof of purchase; the page states "The MARSTEK SATURN-C B2500 comes with a 10-year warranty."

Location: User manual, Warranty and Contact Information

[1]

Certificate records

EN IEC 62109-1/-2Claimed · Listed when checkedApplies to: unresolved document set

Printed as "EN IEC 62109-1/-2" in the Standards row of the MARSTEK B2500-D specification table on MARSTEK's product page. Recorded exactly as printed, as a manufacturer claim. The document names no certification body, certificate number or scope for it, no certificate was read, and no issuer record was checked.

[2]
EN IEC 61000-6-1/3Claimed · Listed when checkedApplies to: unresolved document set

Printed as "EN IEC 61000-6-1/3" in the Standards row of the MARSTEK B2500-D specification table on MARSTEK's product page. Recorded exactly as printed, as a manufacturer claim. The document names no certification body, certificate number or scope for it, no certificate was read, and no issuer record was checked.

[2]
IEC62619:2022Claimed · Listed when checkedApplies to: unresolved document set

Printed as "IEC62619:2022" in the Standards row of the MARSTEK B2500-D specification table on MARSTEK's product page. Recorded exactly as printed, as a manufacturer claim. The document names no certification body, certificate number or scope for it, no certificate was read, and no issuer record was checked.

[2]
WEEEClaimed · Listed when checkedApplies to: unresolved document set

Printed as "WEEE" in the Standards row of the MARSTEK B2500-D specification table on MARSTEK's product page. Recorded exactly as printed, as a manufacturer claim. The document names no certification body, certificate number or scope for it, no certificate was read, and no issuer record was checked.

[2]
ROHSClaimed · Listed when checkedApplies to: unresolved document set

Printed as "ROHS" in the Standards row of the MARSTEK B2500-D specification table on MARSTEK's product page. Recorded exactly as printed, as a manufacturer claim. The document names no certification body, certificate number or scope for it, no certificate was read, and no issuer record was checked.

[2]
REACHClaimed · Listed when checkedApplies to: unresolved document set

Printed as "REACH" in the Standards row of the MARSTEK B2500-D specification table on MARSTEK's product page. Recorded exactly as printed, as a manufacturer claim. The document names no certification body, certificate number or scope for it, no certificate was read, and no issuer record was checked.

[2]

Sources and revisions

  1. MARSTEK Micro ESS Power Station B2500 user manual (PDF)Official user manual · Checked https://cdn.shopify.com/s/files/1/0746/1575/0952/files/SATURN-C_B2500_User_Manual_compressed.pdf?v=1776132359
  2. MARSTEK SATURN B2500-D product page, marstekenergy.com (September 29, 2026 capture)Official product page · Checked https://marstekenergy.com/products/marstek-b2500-micro-energy-storage-system
  3. MARSTEK SATURN B2500-D, MARSTEK store product data (JSON, September 29, 2026 capture)Official product feed · Checked https://marstekenergy.com/products/marstek-b2500-micro-energy-storage-system.json
  4. MARSTEK Download Center (September 29, 2026 capture)Official product page · Checked https://marstekenergy.com/pages/download-center
  5. MARSTEK B2500-D brochure (PDF, 2 pages)Official datasheet · Checked https://cdn.shopify.com/s/files/1/0746/1575/0952/files/SATURN-C_B2500_Brochure_EN_compressed.pdf