Rack UPS is rated in watts per cell at 15-min, not Ah. If your UPS says "21W/cell min", fit at least WP21W-12.

Yes, but you lose the peak premium. For low prolonged use, standard WP is more efficient.

WP WATT Series

LONG WP Watt Series batteries: high-rate 12V AGM optimised for fast discharge in rack UPS. 21W-150W per cell. Effective 5-40 Ah depending on rate.

Vs standard WP, delivers 30-50% more peak watts for 5-15 minutes — ideal for peak loads and data centers.

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Battery Long WP1236W 9Ah 36Wh

€18.54

12V
9Ah
AGM
151x65x102

TO BUY

Battery Long WP1251W 12Ah 51Wh

12V
12Ah
AGM
151x98x98

TO BUY

Battery Long WP1236WT 9Ah 36Wh

12V
9Ah
AGM
151x65x106

TO BUY

Battery Long WP7-12(28W)T...

12V
7Ah
AGM
151x65x106

TO BUY

Battery Long WP7-12(28W)...

€21.19

12V
7Ah
AGM
151x65x102

TO BUY

Battery Long WP1224W 6Ah 24Wh

12V
6Ah
AGM
151x51x101

TO BUY

Battery Long WP1213W 3.3Ah...

12V
3.3Ah
AGM
134x67x65.5

TO BUY

LONG WP Watt — high-rate AGM

Watt range turns standard WP into a fast-discharge battery: thinner, more numerous plates, more active surface per volume unit. Spec is watts per cell at 15-min: WP21W = 21 W/cell for 15 min.

Code	W/cell 15min	Eq. Ah	Application
WP21W-12	21	5	1U rack small UPS
WP50W-12	50	9	SMB rack UPS
WP90W-12	90	17	Server UPS
WP150W-12	150	40	Data center UPS

Compatible UPS

APC Smart-UPS RT, SRT
Eaton 9SX, 9PX rack
Riello Sentinel Tower

Watt or Ah?: Rack UPS is rated in watts per cell at 15-min, not Ah. If your UPS says "21W/cell min", fit at least WP21W-12.
Use in non-rack UPS?: Yes, but you lose the peak premium. For low prolonged use, standard WP is more efficient.

LONG WP Watt catalogue curated by our technical team. 10,000+ Trustpilot 4.4/5. 24h mainland delivery, free 14-day returns.

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